[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

reasonify-headless/reasonify/utils/tool.py

@@ -24,7 +24,7 @@ def tool[T: Callable](function: T) -> T:
 @register_component("stubs")
 @SimpleComponent
 def stubfile():
-    return f"```py\n{"\n\n".join(stubs.values())}\n```"
+    return f"```py\n{'\n\n'.join(stubs.values())}\n```"
 
 
 @tool