python310Packages.google-cloud-language: fix homepage and changelog

pkgs/development/python-modules/google-cloud-language/default.nix

···
 
   meta = with lib; {
     description = "Google Cloud Natural Language API client library";
-    homepage = "https://github.com/googleapis/python-language";
-    changelog = "https://github.com/googleapis/python-language/blob/v${version}/CHANGELOG.md";
+    homepage = "https://github.com/googleapis/google-cloud-python/tree/main/packages/google-cloud-language";
+    changelog = "https://github.com/googleapis/google-cloud-python/blob/google-cloud-language-v${version}/packages/google-cloud-language/CHANGELOG.md";
     license = licenses.asl20;
     maintainers = with maintainers; [ ];
   };