Add push to ghcr

Author: bkildow

.github/workflows/default.yml

@@ -57,13 +57,13 @@ jobs:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_TOKEN }}
 
-      # - name: Login to GitHub Container Registry
-      #   if: github.event_name != 'pull_request'
-      #   uses: docker/login-action@v1
-      #   with:
-      #     registry: ghcr.io
-      #     username: ${{ github.repository_owner }}
-      #     password: ${{ secrets.GITHUB_TOKEN }}
+      - name: Login to GitHub Container Registry
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v1
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Build
         uses: docker/build-push-action@v2