Add safety catch for first trial run of CoC rollout.

Author: freakboy3742

.github/workflows/coc-update.yml

@@ -62,6 +62,12 @@ jobs:
             exit 0
         fi
 
+        # Safety catch for initial testing.
+        if [[ "${{ matrix.full_repo }}" != "beeware/bugjar" ]]; then
+            echo "Initial safety catch... skipping non-bugjar..."
+            exit 0
+        fi
+
         # Work within target repo
         cd targetrepo