Dog food the action

[thomaseizinger]

Add a CI config where we use our own action :)

[joesturge]

wouldn;t something like this work if you create a .github/workflows/release.yaml

...
      - name: Update changelog
        id: update_changelog
        uses: ./
        with:
          tag: ${{ github.ref_name }}
...

[thomaseizinger]

wouldn;t something like this work if you create a .github/workflows/release.yaml

...
      - name: Update changelog
        id: update_changelog
        uses: ./
        with:
          tag: ${{ github.ref_name }}
...

Probably, I just haven't gotten around to it! We need to also make a commit and stuff so it needs a slightly bigger workflow.