fix: lib/geonames/generators/vendor/guzzlehttp/ringphp/docs/requirements.txt to reduce vulnerabilities (#267)

The following vulnerabilities are fixed by pinning transitive dependencies:
- https://snyk.io/vuln/SNYK-PYTHON-ZIPP-7430899

Co-authored-by: snyk-bot <snyk-bot@snyk.io>

Author: benjaminpick

lib/geonames/generators/vendor/guzzlehttp/ringphp/docs/requirements.txt

@@ -3,3 +3,4 @@ sphinx>=3.0.4 # not directly required, pinned by Snyk to avoid a vulnerability
 setuptools>=65.5.1 # not directly required, pinned by Snyk to avoid a vulnerability
 requests>=2.32.0 # not directly required, pinned by Snyk to avoid a vulnerability
 urllib3>=2.2.2 # not directly required, pinned by Snyk to avoid a vulnerability
+zipp>=3.19.1 # not directly required, pinned by Snyk to avoid a vulnerability