Update importlib-resources requirement

Updates the requirements on [importlib-resources](https://github.com/python/importlib_resources) to permit the latest version.
- [Release notes](https://github.com/python/importlib_resources/releases)
- [Changelog](https://github.com/python/importlib_resources/blob/main/NEWS.rst)
- [Commits](python/importlib_resources@v6.1.3...v6.4.0)

---
updated-dependencies:
- dependency-name: importlib-resources
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

requirements-client.txt

@@ -10,7 +10,7 @@ griffe >= 0.20.0
 httpcore >=0.15.0, < 2.0.0
 httpx[http2] >= 0.23, != 0.23.2
 importlib_metadata >= 4.4; python_version < '3.10'
-importlib-resources >= 6.1.3, < 6.2.0
+importlib-resources >= 6.1.3, < 6.5.0
 jsonpatch >= 1.32, < 2.0
 jsonschema >= 3.2.0, < 5.0.0
 orjson >= 3.7, < 4.0