Bump importlib-metadata from 8.3.0 to 8.4.0

Bumps [importlib-metadata](https://github.com/python/importlib_metadata) from 8.3.0 to 8.4.0.
- [Release notes](https://github.com/python/importlib_metadata/releases)
- [Changelog](https://github.com/python/importlib_metadata/blob/main/NEWS.rst)
- [Commits](python/importlib_metadata@v8.3.0...v8.4.0)

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

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

test_reqs.txt

@@ -1,6 +1,6 @@
 django-treebeard==4.7.1
 coverage==7.6.1
-importlib-metadata==8.3.0  # for flake8
+importlib-metadata==8.4.0  # for flake8
 typing_extensions==4.12.2
 zipp==3.20.0  # for flake8
 flake8==7.1.1