Update variables

.github/workflows/buildandscan-onpr.yml

@@ -4,7 +4,6 @@ on:
 
 env:
   REGISTRY: ghcr.io
-  IMAGE_NAME: ${{ github.repository }}
 
 jobs:
   build-and-push-image:
@@ -29,14 +28,14 @@ jobs:
         id: meta
         uses: docker/metadata-action@v5
         with:
-          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          images: ${{ env.REGISTRY }}/${{ github.repository }}
 
       - name: Build and push Docker image
         uses: docker/build-push-action@v5
         with:
           context: .
           push: true
-          tags: ghcr.io/${{ github.repository_owner }}/${{ env.IMAGE_NAME }}:${{ github.sha }}
+          tags: ghcr.io/${{ github.repository }}:${{ github.sha }}
           labels: ${{ steps.meta.outputs.labels }}
 
   scan-image:
@@ -50,7 +49,7 @@ jobs:
       - name: Run Trivy vulnerability scanner
         uses: aquasecurity/trivy-action@master
         with:
-          image-ref: 'ghcr.io/${{ github.repository_owner }}/${{ env.IMAGE_NAME }}:${{ github.sha }}'
+          image-ref: 'ghcr.io/${{ github.repository }}:${{ github.sha }}'
           format: 'table'
           exit-code: '1'
           ignore-unfixed: true