chore: ignore ruff cache (googleapis#15614)

ohmayr · web-flow · commit b4f99323980a · 2026-02-25T17:45:47.000-05:00
Avoid checking in ruff cache.
diff --git a/.gitignore b/.gitignore
@@ -62,3 +62,6 @@ system_tests/local_test_setup
 # Make sure a generated file isn't accidentally committed.
 pylintrc
 pylintrc.test
+
+# Ruff cache
+.ruff_cache
