fix: add working-directory parameter to config step to support checki…

…ng manifest in subdirectory pkgs

action.yml

@@ -127,6 +127,7 @@ runs:
         : Configure Lean Action
         ${{ github.action_path }}/scripts/config.sh
       shell: bash
+      working-directory: ${{ inputs.lake-package-directory }}
 
     - uses: actions/cache@v4
       if: ${{ inputs.use-github-cache == 'true' }}