chore(python): bump zipp back to 3.21.0

Author: villevsv-upcloud

requirements-dev.txt

@@ -54,7 +54,8 @@ urllib3==2.5.0
     #   responses
 wheel==0.45.1
     # via pip-tools
-zipp==3.19.1
+zipp==3.21.0
+    # via importlib-metadata
 
 # The following packages are considered to be unsafe in a requirements file:
 # pip