build(deps): update importlib-metadata requirement in /requirements

Updates the requirements on [importlib-metadata](https://github.com/python/importlib_metadata) to permit the latest version.
- [Release notes](https://github.com/python/importlib_metadata/releases)
- [Changelog](https://github.com/python/importlib_metadata/blob/main/NEWS.rst)
- [Commits](python/importlib_metadata@0.1...v8.7.0)

---
updated-dependencies:
- dependency-name: importlib-metadata
  dependency-version: 8.7.0
  dependency-type: direct:production
...

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

Author: dependabot[bot]

requirements/ci.txt

@@ -2,7 +2,7 @@ setuptools <70.1.1
 wheel <0.46.0
 awscli >=1.30.0, <1.41.0
 twine ==6.0.1
-importlib-metadata <8.0.0
+importlib-metadata <9.0.0
 wget
 pkginfo ==1.12.0
 packaging <25.1