CI: publish docker image to ghrc

.github/workflows/goreleaser.yaml

@@ -5,15 +5,18 @@ on:
     tags:
       - '*'
 
+env:
+  # Use docker.io for Docker Hub if empty
+  REGISTRY: ghcr.io
+  # github.repository as <account>/<repo>
+  IMAGE_NAME: ${{ github.repository }}
+
 jobs:
   goreleaser:
     permissions:
-      contents: write
-    runs-on:
-      - environment=production
-      - size=xlarge
-      - provider=ethpandaops
-      - realm=platform
+      contents: read
+      packages: write
+    runs-on: ubuntu-latest
     steps:
       -
         name: Checkout
@@ -63,11 +66,12 @@ jobs:
         with:
           endpoint: builders
       -
-        name: Login to DockerHub
+        name: Login to docker registry
         uses: docker/login-action@v2
         with:
-          username: ${{ secrets.DOCKERHUB_USERNAME }}
-          password: ${{ secrets.DOCKERHUB_TOKEN }}
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
       - name: Update GoReleaser config
         run: |
           cp .goreleaser.yaml ../.goreleaser.yaml.new