fixup! skip sscache action on non-main branches

Co-authored-by: Antoine du Hamel <duhamelantoine1995@gmail.com>

Author: joyeecheung

.github/workflows/test-shared.yml

@@ -198,7 +198,7 @@ jobs:
             --pure --keep TAR_DIR --keep FLAKY_TESTS \
             --keep SCCACHE_GHA_VERSION --keep ACTIONS_CACHE_SERVICE_V2 --keep ACTIONS_RESULTS_URL --keep ACTIONS_RUNTIME_TOKEN \
             --arg loadJSBuiltinsDynamically false \
-            --arg ccache '${{ (github.base_ref == 'main' || github.ref_name == 'main') && 'import <nixpkgs> {}).sccache' || 'null' }}' \
+            --arg ccache '${{ (github.base_ref == 'main' || github.ref_name == 'main') && '(import <nixpkgs> {}).sccache' || 'null' }}' \
             --arg devTools '[]' \
             --arg benchmarkTools '[]' \
             ${{ endsWith(matrix.system, '-darwin') && '--arg withAmaro false --arg withLief false --arg withSQLite false --arg extraConfigFlags ''["--without-inspector" "--without-node-options"]'' \' || '\' }}