fix merge request image builds

Author: vidbregar-flare

.github/workflows/release-image.yml

@@ -15,10 +15,7 @@ on:
       registry-password:
         required: true
 
-permissions:
-  contents: read
-  packages: write
-  id-token: write
+permissions: read-all
 
 jobs:
   build:
@@ -56,7 +53,6 @@ jobs:
         uses: docker/setup-buildx-action@v2
 
       - name: Login to registry
-        if: github.event_name != 'pull_request'
         uses: docker/login-action@v2
         with:
           registry: ghcr.io