Fix typo

Author: tstellar

.github/workflows/release-binaries.yml

@@ -195,7 +195,7 @@ jobs:
           target_cmake_flags="$target_cmake_flags -DLLVM_RELEASE_ENABLE_LTO=OFF"
         fi
         
-        target_cmake_flags=$target_cmake_flags -D${bootstrap_prefix}_CPACK_PACKAGE_FILE_NAME=$release_binary_basename
+        target_cmake_flags="$target_cmake_flags -D${bootstrap_prefix}_CPACK_PACKAGE_FILE_NAME=$release_binary_basename"
 
         echo "target-cmake-flags=$target_cmake_flags" >> $GITHUB_OUTPUT
         echo "build-flang=$build_flang" >> $GITHUB_OUTPUT