Pluralise the ${{ vars.x }} reference name

.forgejo/workflows/test-and-publish.yml

@@ -43,7 +43,7 @@ jobs:
       - name: Log in to the Container registry
         uses: docker/login-action@65b78e6e13532edd9afa3aa52ac7964289d1a9c1
         with:
-          registry: ${{ var.DOCKER_REGISTRY }}
+          registry: ${{ vars.DOCKER_REGISTRY }}
           username: ${{ env.GITHUB_ACTOR }}
           password: ${{ secrets.PACKAGE_PAT }}
 
@@ -54,7 +54,7 @@ jobs:
         id: meta
         uses: docker/metadata-action@9ec57ed1fcdbf14dcef7dfbe97b2010124a938b7
         with:
-          images: ${{ var.DOCKER_REGISTRY }}/${{ env.GITHUB_REPOSITORY }}
+          images: ${{ vars.DOCKER_REGISTRY }}/${{ env.GITHUB_REPOSITORY }}
           tags: |
             type=ref,event=tag
             type=ref,event=branch