tag Docker image with version

Author: dlidstrom

.github/workflows/ccpp.yml

@@ -95,6 +95,7 @@ jobs:
         tag_with_ref: true
         # push: ${{ startsWith(github.ref, 'refs/tags/') }}
         build_args: DUPLO_VERSION=${{ env.DUPLO_VERSION }}
+        tags: ${{ env.DUPLO_VERSION }}
   upload-release:
     if: success() && github.ref == 'refs/heads/master'
     runs-on: ubuntu-latest