fix: yaml.load without a loader doesn't exist anymore

cube_doctor/transforms/add_yamllint.py

@@ -119,7 +119,7 @@ class AddYamlLint(Command):
 
                     # reread it because we've just modified it
                     gitlab_ci_content = repo.read_file(".gitlab-ci.yml")
-                    gitlab_ci_yaml = yaml.load(gitlab_ci_content)
+                    gitlab_ci_yaml = yaml.safe_load(gitlab_ci_content)
 
             if not gitlab_ci_yaml.get("image", "").strip().startswith("python"):
                 context["image"] = True