Bump importlib-metadata from 6.7.0 to 6.8.0

Bumps [importlib-metadata](https://github.com/python/importlib_metadata) from 6.7.0 to 6.8.0.
- [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...v6.8.0)

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

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

requirements.txt

@@ -4,9 +4,9 @@
 #
 #    pip-compile --generate-hashes requirements.in
 #
-importlib-metadata==6.7.0 \
-    --hash=sha256:1aaf550d4f73e5d6783e7acb77aec43d49da8017410afae93822cc9cca98c4d4 \
-    --hash=sha256:cb52082e659e97afc5dac71e79de97d8681de3aa07ff18578330904a9d18e5b5
+importlib-metadata==6.8.0 \
+    --hash=sha256:3ebb78df84a805d7698245025b975d9d67053cd94c79245ba4b3eb694abe68bb \
+    --hash=sha256:dbace7892d8c0c4ac1ad096662232f831d4e64f4c4545bd53016a3e9d4654743
     # via -r requirements.in
 microvenv==2023.2.0 \
     --hash=sha256:5b46296d6a65992946da504bd9e724a5becf5c256091f2f9383e5b4e9f567f23 \