FIX: includde .lock file after db readind

.github/workflows/evaluate_tree_packing.yml

@@ -73,5 +73,6 @@ jobs:
           git checkout $branch_name
           git pull origin $branch_name --allow-unrelated-histories
           git add README.md
+          git add src/database/tree_database.fs.lock
           git commit -m "Update badges in README" || echo "No changes to commit"
           git push origin HEAD:$branch_name