fix(ci): add previous_tag from git describe

.github/workflows/docker-multiarch-tag.yml

@@ -22,7 +22,7 @@ jobs:
         mkdir env
         echo ${{ steps.tag_version.outputs.new_version }} > env/new_version
         echo ${{ steps.tag_version.outputs.new_tag }} > env/new_tag
-        echo ${{ steps.tag_version.outputs.previous_tag }} > env/previous_tag
+        git describe --abbrev=0 > env/previous_tag
     - uses: actions/upload-artifact@v1
       with:
         name: env