ops: fix for GitHub's CI

tests/fetchers/sync/test_dynamic.py

@@ -1,3 +1,5 @@
+import os
+
 import pytest
 import pytest_httpbin
 
@@ -94,6 +96,10 @@ class TestDynamicFetcher:
         with pytest.raises(Exception):
             fetcher.fetch(self.html_url, cdp_url="ws://blahblah")
 
+    @pytest.mark.skipif(
+        "GITHUB_ACTIONS" in os.environ,
+        reason="Fails in GitHub Actions."
+    )
     def test_infinite_timeout(
         self,
         fetcher,