nit

.github/workflows/test.yaml

@@ -25,7 +25,6 @@ on:
 env:
   RAD_CLI_URL: https://get.radapp.dev/tools/rad/install.sh
   RUN_IDENTIFIER: samplestest-${{ github.run_id }}-${{ github.run_attempt }}
-  GHCR_ACTOR: rad-ci-bot
 jobs:
   test:
     name: Sample tests
@@ -180,11 +179,12 @@ jobs:
         run: |
           helm repo add dapr https://dapr.github.io/helm-charts/
           helm install dapr dapr/dapr --version=1.6 --namespace dapr-system --create-namespace --wait
+      # TODO: Remove authentication once GHCR is public
       - name: Login to GitHub Container Registry
         uses: docker/login-action@v2
         with:
           registry: ghcr.io
-          username: ${{ env.GHCR_ACTOR }}
+          username: rad-ci-bot
           password: ${{ secrets.GH_RAD_CI_BOT_PAT }}
       - name: Download rad CLI
         if: steps.gen-id.outputs.RUN_TEST == 'true'