ci: experiment with a GHA to publish test/dev images

.github/workflows/publish-dev-docker.yml

@@ -4,29 +4,13 @@ on:
     branches:
       - "**"
 jobs:
-  set-tag:
-    runs-on: ubuntu-latest
-    outputs:
-      version: ${{ steps.gen_version.outputs.VERSION }}
-    steps:
-      - name: set values
-        id: gen_version
-        run: |
-          echo "VERSION=${GITHUB_REF#refs/tags/}" >> $GITHUB_OUTPUT
-      - name: Use the value
-        # this sets environment variables for this step
-        env:
-          VERSION: 
-        run: |
-          echo "${VERSION}"
-
   docker:
     runs-on: ubuntu-latest
     steps:
       - name: set tag
         id: set_tag
         run: |
-          echo "TAG=${GITHUB_REF}" | sed 's/\//_/g' >> $GITHUB_OUTPUT
+          echo "TAG=${GITHUB_REF}" | sed 's/refs\/heads\///g' | sed 's/\//_/g' >> $GITHUB_OUTPUT
       -
         name: Login to Docker Hub
         uses: docker/login-action@v3