Bump importlib-metadata from 6.7.0 to 8.0.0

Bumps [importlib-metadata](https://github.com/python/importlib_metadata) from 6.7.0 to 8.0.0.
- [Release notes](https://github.com/python/importlib_metadata/releases)
- [Changelog](https://github.com/python/importlib_metadata/blob/main/NEWS.rst)
- [Commits](python/importlib_metadata@v6.7.0...v8.0.0)

---
updated-dependencies:
- dependency-name: importlib-metadata
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

sphinx/requirements.txt

@@ -7,7 +7,7 @@ charset-normalizer==3.3.2
 docutils==0.20.1
 idna==3.6
 imagesize==1.4.1
-importlib-metadata==6.7.0
+importlib-metadata==8.0.0
 Jinja2==3.1.3
 MarkupSafe==2.1.3
 nbsphinx