Using the output variables in a job is broken after the changes to GITHUB_OUTPUT as can be seen in https://github.com/philips-internal/amp-connectivity-devcontainer/pull/20.

The GitHub documentation is a bit misleading in this respect. See: https://docs.github.com/en/actions/using-workflows/workflow-commands-for-github-actions#setting-an-output-parameter.

The shell snippet looks like this:

echo "{name}={value}" >> $GITHUB_OUTPUT

While the example looks like this:

      - name: Set color
        id: random-color-generator
        run: echo "SELECTED_COLOR=green" >> $GITHUB_OUTPUT
      - name: Get color
        run: echo "The selected color is ${{ steps.random-color-generator.outputs.SELECTED_COLOR }}"

I have removed all parenthesis in this PR.