Use yaml.safe_dump just to be safe

Author: Justin

src/formats/base.py

@@ -124,7 +124,7 @@ def _format_yaml_field(self, field_name: str, value: str) -> str:
             Properly formatted YAML string, or empty string if value is empty
         """
         if value and value.strip():
-            yaml_dump = yaml.dump(
+            yaml_dump = yaml.safe_dump(
                 {field_name: value},
                 default_flow_style=False,
                 allow_unicode=True,