fallback to main

.github/workflows/compile-queries.yml

@@ -41,6 +41,7 @@ jobs:
           key: codeql-compile-${{ github.ref }}-${{ github.sha }} # just fill on main
           restore-keys: | # restore from another random commit, to speed up compilation.
             codeql-compile-${{ github.ref }}- 
+            codeql-compile-refs/heads/main-
       - name: Setup CodeQL
         uses: ./.github/actions/fetch-codeql
         with: