fix: sdk/python/requirements.txt to reduce vulnerabilities

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

Author: snyk-bot

sdk/python/requirements.txt

@@ -102,3 +102,4 @@ urllib3==2.6.3
     #   requests
 websocket-client==1.9.0
     # via kubernetes
+zipp>=3.19.1 # not directly required, pinned by Snyk to avoid a vulnerability