ci: update docker creds

Author: ggguardian

.github/workflows/ci.yaml

@@ -17,9 +17,9 @@ on:
 env:
   DAGGER_VERSION: "0.13.7"
   DOCKER_REGISTRY: ${{ vars.DOCKER_REGISTRY }}
-  DOCKER_REPOSITORY: ${{ vars.DOCKER_REPOSITORY }}
-  DOCKER_REGISTRY_USERNAME: ${{ vars.DOCKER_REGISTRY_USERNAME }}
-  DOCKER_REGISTRY_PASSWORD: ${{ secrets.DOCKER_REGISTRY_PASSWORD }}
+  DOCKER_REPOSITORY: ${{ vars.TEST_DOCKER_REPOSITORY }}
+  DOCKER_REGISTRY_USERNAME: ${{ vars.TEST_DOCKER_REGISTRY_USERNAME }}
+  DOCKER_REGISTRY_PASSWORD: ${{ secrets.TEST_DOCKER_REGISTRY_PASSWORD }}
 
 jobs:
   docker: