fix(ci): do not use a name when logging in

This should fix an error with `tea`

.forgejo/workflows/update.yml

@@ -40,7 +40,7 @@ jobs:
           git add ./Cargo.lock
           DIFF="$(git diff --staged)"
           if [[ "$DIFF" == "" ]]; then
-            echo "Cargo.lock was not changed, bailing out and not making a PR"
+            echo >2 "Cargo.lock was not changed, bailing out and not making a PR"
             exit 1
           fi
           git commit --no-verify --file=commit.txt