Update reuse requirement from ~=4.0.3 to ~=5.0.2

Updates the requirements on [reuse](https://github.com/fsfe/reuse-tool) to permit the latest version.
- [Release notes](https://github.com/fsfe/reuse-tool/releases)
- [Changelog](https://github.com/fsfe/reuse-tool/blob/main/CHANGELOG.md)
- [Commits](fsfe/reuse-tool@v4.0.3...v5.0.2)

---
updated-dependencies:
- dependency-name: reuse
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

requirements.txt

@@ -3,7 +3,7 @@
 
 Sphinx~=8.1
 doc8~=1.1.2
-reuse~=4.0.3
+reuse~=5.0.2
 sphinx-rtd-theme~=3.0.2
 sphinxcontrib-spelling~=8.0.0
 sphinx-multiversion~=0.2.4