Fix a missing double quote

Author: nobu

.github/actions/launchable/setup/action.yml

@@ -244,7 +244,7 @@ runs:
         post: |
           rm -f "${test_all_session_file}"
           rm -f "${btest_session_file}"
-          rm -f "${test_spec_session_file}
+          rm -f "${test_spec_session_file}"
       if: always() && steps.setup-launchable.outcome == 'success'
       env:
         test_all_session_file: ${{ steps.global.outputs.test_all_session_file }}