Merge branch 'zj-enable-gitaly-ffs-in-tests' into 'master'

testing: Enable all Gitaly feature flags in CI

See merge request gitlab-org/gitlab!52308

scripts/gitaly_test.rb

@@ -52,7 +52,8 @@ module GitalyTest
       'RUBYOPT' => nil,
 
       # Git hooks can't run during tests as the internal API is not running.
-      'GITALY_TESTING_NO_GIT_HOOKS' => "1"
+      'GITALY_TESTING_NO_GIT_HOOKS' => "1",
+      'GITALY_TESTING_ENABLE_ALL_FEATURE_FLAGS' => "true"
     }
 
     env_hash