Fix CI job

Author: martinRenou

.github/workflows/main.yml

@@ -172,7 +172,7 @@ jobs:
           pushd emsdk
           ./emsdk activate ${{matrix.emsdk_ver}}
           source emsdk_env.sh
-          export FILE_PACKAGER=$(cwd)/upstream/emscripten/tools/file_packager.py
+          export FILE_PACKAGER=$(pwd)/upstream/emscripten/tools/file_packager.py
           popd
 
           yarn install