Merge list with dict; allow hidden files; hatch cleanup

What's Changed

• PEP621 and hatch scripts by @LecrisUT in #202
• Add support for merging list with dict by @kkaarreell in #256
• Handle missing attribute for merge/minus operation by @lukaszachy in #254
• Bump the pre-commit hook checks by @psss in #259
• Use the referencing library where available by @martinhoyer in #253
• Keep order of the operation when merging values by @psss in #260
• Enable the epel-10 building and testing by @lukaszachy in #251
• Enable downstream jobs, simplify packit config by @psss in #261
• Handle nested dict extending non-existent keys by @psss in #263
• Use hatch version instead of packit default by @psss in #265
• Explore metadata in hidden files and directories by @psss in #264
• Release fmf-1.5.0 by @psss in #262

New Contributors

• @kkaarreell made their first contribution in #256

Full Changelog: 1.4.1...1.5.0