CI: Moved away from `GITHUB_REF` in favor of `github.ref_name`. (#5118)

.github/workflows/ci.build.release.yml

@@ -49,7 +49,7 @@ jobs:
         id: ci_tag_release_version
         if: contains(env.DOCKER_BUILD_ENABLED, 'true')
         shell: bash
-        run: echo "##[set-output name=tag;]$(echo ${GITHUB_REF#refs/tags/} | cut -c 9-)"
+        run: echo "##[set-output name=tag;]$(echo ${{github.ref_name}} | cut -c 9-)"
 
       - name: Extract Tag Release Major
         id: ci_tag_release_major