chore(deps): bump guardian/actions-publish-image in /.github/workflows (#16725)

Bumps [guardian/actions-publish-image](https://github.com/guardian/actions-publish-image) from 0.0.7 to 0.0.8.
- [Release notes](https://github.com/guardian/actions-publish-image/releases)
- [Commits](guardian/actions-publish-image@v0.0.7...v0.0.8)

---
updated-dependencies:
- dependency-name: guardian/actions-publish-image
  dependency-version: 0.0.8
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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.github/workflows/container-production.yml

@@ -39,7 +39,7 @@ jobs:
       - name: Build image
         run: docker buildx build --platform linux/arm64 -f Production.dockerfile -t ${{ github.repository }}:latest .
       - name: Publish Image
-        uses: guardian/actions-publish-image@v0.0.7
+        uses: guardian/actions-publish-image@v0.0.8
         id: publish-image
         with:
           roleArn: ${{ secrets.GU_ARTIFACTS_ROLE_ARN }}