fix tag ref for releases

Author: ibourgeois

.github/workflows/release.yml

@@ -14,7 +14,7 @@ jobs:
         uses: actions/checkout@v2
 
       - name: Build the Docker Image
-        run: docker build . --file Dockerfile --tag devoption/codexa:${{ github.ref }} --tag devoption/codexa:latest
+        run: docker build . --file Dockerfile --tag devoption/codexa:${{ github.ref_name }} --tag devoption/codexa:latest
 
       - name: Login to Docker Hub
         uses: docker/login-action@v1
@@ -24,4 +24,4 @@ jobs:
           password: ${{ secrets.DOCKER_PASSWORD }}
 
       - name: Push the Docker Image to Docker Hub
-        run: docker push devoption/codexa:${{ github.ref }} && docker push devoption/codexa:latest
+        run: docker push devoption/codexa:${{ github.ref_name }} && docker push devoption/codexa:latest