ci(secrets): migrate GITHUB_TOKEN references to PROJECT_TOKEN secret

.github/workflows/docker-publish.yml

@@ -73,7 +73,7 @@ jobs:
         with:
           registry: ${{ env.REGISTRY }}
           username: ${{ github.actor }}
-          password: ${{ secrets.GITHUB_TOKEN }}
+          password: ${{ secrets.PROJECT_TOKEN }}
 
       - name: Extract metadata (tags, labels)
         if: steps.skip.outputs.skip_build != 'true'