ensure lowercase repo name for build pass

Author: pironic

.github/workflows/docker-publish.yml

@@ -17,7 +17,7 @@ env:
   # Use docker.io for Docker Hub if empty
   REGISTRY: ghcr.io
   # github.repository as <account>/<repo>
-  IMAGE_NAME: ${{ github.repository }}
+  IMAGE_NAME: ${{ github.repository }} 
 
 
 jobs:
@@ -75,7 +75,7 @@ jobs:
         with:
           context: .
           push: ${{ github.event_name != 'pull_request' }}
-          tags: ${{ steps.meta.outputs.tags }},${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest
+          tags: ${{ steps.meta.outputs.tags }},writhem/php:latest
           labels: ${{ steps.meta.outputs.labels }}
           cache-from: type=gha
           cache-to: type=gha,mode=max