fledge: Bump version to 2.3.1.9002 (#2638)

Co-authored-by: krlmlr <krlmlr@users.noreply.github.com>

Author: github-actions[bot]

DESCRIPTION

@@ -1,6 +1,6 @@
 Package: igraph
 Title: Network Analysis and Visualization
-Version: 2.3.1.9001
+Version: 2.3.1.9002
 Authors@R: c(
     person("Gábor", "Csárdi", , "csardi.gabor@gmail.com", role = "aut",
            comment = c(ORCID = "0000-0001-7098-9676")),

NEWS.md

@@ -1,5 +1,42 @@
 <!-- NEWS.md is maintained by https://fledge.cynkra.com, contributors should not edit this file -->
 
+# igraph 2.3.1.9002
+
+## Chore
+
+- Add ccache to `.gitignore` and `.Rbuildignore`.
+
+## Continuous integration
+
+- Create snapshot update PR against correct branch.
+
+- Add reference to `/apply-patch` workflow in commit message.
+
+- Clarify rationale for not deploying on schedule.
+
+- Really deploy pkgdown only on push.
+
+- Disable vendoring workflow to avoid noise.
+
+- Only run fledge on pushes to main.
+
+- Tweak fledge workflow and ccache action.
+
+- Cosmetics.
+
+- Bump action versions.
+
+- Install clang-format-21.
+
+- Align fledge workflow.
+
+- Harmonize.
+
+## Uncategorized
+
+- Merge branch 'krlmlr-main'.
+
+
 # igraph 2.3.1.9001
 
 ## Chore