Fix skipping locale tests on Github Actions

tests/checks/locale.fish

@@ -1,10 +1,8 @@
 #RUN: %fish -C "set fish %fish" %s
-
 # This hangs when running on github actions with tsan for unknown reasons,
 # see #7934.
-if set -q GITHUB_WORKFLOW
-    exit 0
-end
+#REQUIRES: test -z "$GITHUB_WORKFLOW"
+
 
 # A function to display bytes, necessary because GNU and BSD implementations of `od` have different output.
 # We used to use xxd, but it's not available everywhere. See #3797.