build(deps): update fpdf2 requirement from >=2.7.0 to >=2.8.4

[dependabot]

Updates the requirements on fpdf2 to permit the latest version.

Release notes

Sourced from fpdf2's releases.

Dropping support for Python 3.8 - automated tests run on MacOS - several bugfixes

Added

• documentation on internal linking with variable page numbers
• documentation on using the Ibis library
• clarified docstring for arc() method to document x and y arguments (#1473)
• made numpy an optional dependency to improve the performance of pack_codes_into_bytes() - cf. [issue #1380](py-pdf/fpdf2#1380)
• macOS is now included in the GitHub Actions CI pipeline to ensure cross-platform test coverage

Fixed

• FPDF.write_html(): Fixed custom styling of <p> & tables - [issue #1453](py-pdf/fpdf2#1453)
• an IndexError was raised in some cases when rendering HTML with nested lists - cf. [issue #1358](py-pdf/fpdf2#1358)
• an IndexError was raised in some cases when using text_columns() with text shaping enabled - cf. [issue #1439](py-pdf/fpdf2#1439)
• handled case of a smaller last column when using text_columns() - cf. [issue #1442](py-pdf/fpdf2#1442)
• minor regular-expression optimization in the SVG parsing module, nullifying any risk of ReDOS attack
• a performance issue when using FPDF.offset_rendering() or FPDF.unbreakable() with large fonts - cf. [issue #1444](py-pdf/fpdf2#1444)
• slightly invalid PDF files were produced since v2.8.3, due to path construction commands being inserted inside BT/ET contexts when using underline or strikethrough text - cf. [issue #1456](py-pdf/fpdf2#1456)
• multi_cell() text clipping bug - [issue #1471](py-pdf/fpdf2#1471)
• HTML lists bullets are now properly displayed when using unicode fonts - cf. [issue #1496](py-pdf/fpdf2#1496)
• clarified documentation in Maths.md regarding DataFrame string conversion for PDF rendering
• children of <a> tags in SVGs are now correctly rendered - cf. [PR #1522](py-pdf/fpdf2#1522)

Changed

• accept_page_break is now only called once per page break - cf. [issue #1489](py-pdf/fpdf2#1489)

Removed

• support for Python 3.8, that reached end-of-life in 2024

Changelog

Sourced from fpdf2's changelog.

[2.8.4] - 2025-08-11

Added

• documentation on internal linking with variable page numbers
• documentation on using the Ibis library
• clarified docstring for arc() method to document x and y arguments (#1473)
• made numpy an optional dependency to improve the performance of pack_codes_into_bytes() - cf. [issue #1380](py-pdf/fpdf2#1380)
• macOS is now included in the GitHub Actions CI pipeline to ensure cross-platform test coverage

Fixed

• FPDF.write_html(): Fixed custom styling of <p> & tables - [issue #1453](py-pdf/fpdf2#1453)
• an IndexError was raised in some cases when rendering HTML with nested lists - cf. [issue #1358](py-pdf/fpdf2#1358)
• an IndexError was raised in some cases when using text_columns() with text shaping enabled - cf. [issue #1439](py-pdf/fpdf2#1439)
• handled case of a smaller last column when using text_columns() - cf. [issue #1442](py-pdf/fpdf2#1442)
• minor regular-expression optimization in the SVG parsing module, nullifying any risk of ReDOS attack
• a performance issue when using FPDF.offset_rendering() or FPDF.unbreakable() with large fonts - cf. [issue #1444](py-pdf/fpdf2#1444)
• slightly invalid PDF files were produced since v2.8.3, due to path construction commands being inserted inside BT/ET contexts when using underline or strikethrough text - cf. [issue #1456](py-pdf/fpdf2#1456)
• multi_cell() text clipping bug - [issue #1471](py-pdf/fpdf2#1471)
• HTML lists bullets are now properly displayed when using unicode fonts - cf. [issue #1496](py-pdf/fpdf2#1496)
• clarified documentation in Maths.md regarding DataFrame string conversion for PDF rendering
• children of <a> tags in SVGs are now correctly rendered - cf. [PR #1522](py-pdf/fpdf2#1522)

Changed

• accept_page_break is now only called once per page break - cf. [issue #1489](py-pdf/fpdf2#1489)

Removed

• support for Python 3.8, that reached end-of-life in 2024

[2.8.3] - 2025-04-22

Added

• added tutorial "tuto7" (in English and German) with documentation to create PDF/A files with fpdf2 - thanks to @​lka
• support for Output Intents on document level - thanks to @​lka
• support for shading patterns (gradients) - thanks to @​andersonhc - [PR #1334](py-pdf/fpdf2#1334)
• support for setting a minimal row height in tables
• support for v_align at the row level in tables
• new optional reset_page_indices parameter for insert_toc_placeholder()
• support for strikethrough text
• support for first_line_indent in text_region.Paragraph
• new ViewerPreferences.print_scaling
• documentation on fpdf2 internals
• documentation on generating Aztec Codes
• added Slovenian translation of the tutorial: Vodič - thanks to @​DeepBlackHole
• support for adding TrueType fonts that are missing the .notdef glyph - [issue #1161](py-pdf/fpdf2#1161) - thanks to @​spacegaori
• improved SVG image parsing speed by 50% to 70% - thanks to @​petri-lipponen-movesense - [PR #1350](py-pdf/fpdf2#1350)
• TableBordersLayout is now a non-enum class that supports customizable layouts. The members of the old enum class are now static members of the class and thus can be used as standard options using the same syntax as previously - cf. [PR #957](py-pdf/fpdf2#957)

Fixed

• FPDF.write_html(): Fixed rendering of content following <a> tags; now correctly resets emphasis style post </a> tag: hyperlink styling contained within the tag authority. - [issue #1311](py-pdf/fpdf2#1311)
• FPDF.footer() does not "leak" its text style to the table of contents anymore
• FPDF.table(): Fixed heading styles containing underline failing to render.
• FPDF.ln(): the method now allows a value of 0 to be provided for h.
• font optimization: only include fonts effectively used in the final PDF document. Fonts added via set_font() or add_page() but not actually used in the document are no longer included in the final output. This reduces file size and improves performance, especially for documents with many fallback fonts. - [issue #1382](py-pdf/fpdf2#1382)
• a KeyError was raised in some specific cases when auto-downscaling images - [issue #1409](py-pdf/fpdf2#1409)

Changed

• heading rows of tables are never rendered "alone" on a page anymore

... (truncated)

Commits

• c60de97 v2.8.4
• fe28682 add dlespiau as a contributor for code (#1523)
• 3153c07 SVG: Recurse into <a> tags to render nested elements (#1522)
• 8f55665 Update github/codeql-action action to v3.29.8 (#1519)
• 5fad1e0 Update crate-ci/typos action to v1.35.3 (#1521)
• e53352a Drop python 3.8 support (#1517)
• f95c949 Update github/codeql-action action to v3.29.7 (#1516)
• bcde804 Update crate-ci/typos action to v1.35.2 (#1518)
• 00acc8f Minor documentation update
• e8736c4 Doc: improve docstring of FPDF.pages_count - close #1514 (#1515)
• Additional commits viewable in compare view

Note
Automatic rebases have been disabled on this pull request as it has been open for over 30 days.

[dependabot]

Labels

The following labels could not be found: dependencies. Please create it before Dependabot can add it to a pull request.

Please fix the above issues or remove invalid values from dependabot.yml.