use elif instead of else if

.forgejo/workflows/autotagger.yaml

@@ -31,7 +31,7 @@ jobs:
           if [ $OUTPUT == "Usage: python message.py <commit_message>"]; then
             echo "Called without commit message!"
             exit 1
-          else if [ $OUTPUT == "None"]; then
+          elif [ $OUTPUT == "None"]; then
             echo "::set-output name=latest_tag::$(git describe --tags --abbrev=0)"
           else
             echo "::set-output name=version::$OUTPUT"