Removing branch prefix for artifact tag

Internal script not changed immediately hence keeping artifact part same as current.
Also once internal script logic implemented to handle reading tags from .env files directly, will no longer need artifacts.

.github/workflows/image_build_push.yml

@@ -66,7 +66,7 @@ jobs:
 
     - name: Create artifact text file
       run: |
-        echo ${GITHUB_REF##*/}_${{ steps.date.outputs.date }} > tag_file.txt
+        echo ${{ steps.date.outputs.date }} > tag_file.txt
         echo "Created tag text file"
 
     - name: Upload Artifact