Build(deps): Bump importlib-metadata in /dependencies/default (#537)

Bumps [importlib-metadata](https://github.com/python/importlib_metadata) from 6.3.0 to 6.6.0.
- [Release notes](https://github.com/python/importlib_metadata/releases)
- [Changelog](https://github.com/python/importlib_metadata/blob/main/CHANGES.rst)
- [Commits](python/importlib_metadata@v6.3.0...v6.6.0)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

dependencies/default/constraints.txt

@@ -5,7 +5,7 @@ exceptiongroup==1.1.1
 flaky==3.7.0
 hypothesis==6.72.2
 idna==3.4
-importlib-metadata==6.3.0
+importlib-metadata==6.6.0
 iniconfig==2.0.0
 mypy==1.2.0
 mypy-extensions==1.0.0