running codelens resolve in threaded mode

Author: d-biehl

robotcode/language_server/robotframework/parts/codelens.py

@@ -80,6 +80,8 @@ async def visit_KeywordName(self, node: ast.AST) -> None:  # noqa: N802
 
         return await Visitor.find_from(await self.parent.documents_cache.get_model(document), self)
 
+    @language_id("robotframework")
+    @threaded()
     async def resolve(self, sender: Any, code_lens: CodeLens) -> Optional[CodeLens]:
         if code_lens.data is None:
             return code_lens