Support working-directory

[silverqx]

Would be possible to add the working-directory parameter?

Virtually, it's a shortcut to fastly open an ssh session in the defined directory, something like this:

    - name: Setup tmate session
      if: ${{ always() }}
      uses: mxschmitt/action-tmate@v3
      with:
        limit-access-to-actor: true
      working-directory: ../TinyORM-builds-cmake/build-msvc-cmake-debug
      env:
        DB_MYSQL_PASSWORD: ${{ secrets.DB_MYSQL_PASSWORD }}