Stop using env. directly in more places

Co-authored-by: Simon Li <[email protected]>

Author: yuvipanda

.github/workflows/build.yml

@@ -137,10 +137,11 @@ jobs:
         if: env.PUBLIC == 'true'
         run: |
           docker login -u "${{ secrets.QUAY_USERNAME }}" -p "${{ secrets.QUAY_PASSWORD }}" "${REGISTRY}"
-          if [ "${{ env.PUBLISH_DOCKERIO }}" = "true" ]; then
+          if [ "${PUBLISH_DOCKERIO}" = "true" ]; then
             docker login -u "${{ secrets.DOCKERHUB_USERNAME }}" -p "${{ secrets.DOCKERHUB_TOKEN }}" docker.io
           fi
         env:
+          PUBLISH_DOCKERIO: "true"
           REGISTRY: ${{ env.REGISTRY }}
 
       # image: env.IMAGE