fix(cdk): Handle TypeError in _literal_eval for nested set literals

When ast.literal_eval() encounters a string like "{{'\''web'\''}, {'\''discover'\''}}"
that resembles nested Python set literals, it raises TypeError: unhashable
type: '\''set'\'' because sets cannot contain other sets. The existing except
clause only caught (ValueError, SyntaxError) but not TypeError.

This fix adds TypeError to the except clause so the string is returned
as-is, matching the existing behavior for other unparseable literals.

Resolves airbytehq/oncall#11543

Co-Authored-By: bot_apk <apk@cognition.ai>

Author: devin-ai-integration[bot]

airbyte_cdk/sources/declarative/interpolation/jinja.py

@@ -125,7 +125,7 @@ def eval(
     def _literal_eval(self, result: Optional[str], valid_types: Optional[Tuple[Type[Any]]]) -> Any:
         try:
             evaluated = ast.literal_eval(result)  # type: ignore # literal_eval is able to handle None
-        except (ValueError, SyntaxError):
+        except (ValueError, SyntaxError, TypeError):
             return result
         if (not valid_types and not isinstance(evaluated, complex)) or (
             valid_types and isinstance(evaluated, valid_types)

unit_tests/sources/declarative/interpolation/test_jinja.py

@@ -345,6 +345,16 @@ def test_interpolation_private_partition_attribute():
     assert actual_output == expected_output
 
 
+def test_literal_eval_handles_unhashable_set_typeerror():
+    """Test that _literal_eval gracefully handles TypeError from ast.literal_eval for nested sets."""
+    # ast.literal_eval("{{'web'}, {'discover'}}") raises TypeError: unhashable type: 'set'
+    # The interpolation should return the string as-is instead of propagating the error.
+    config = {"query": "{{'web'}, {'discover'}}"}
+    s = "{{ config['query'] }}"
+    val = interpolation.eval(s, config)
+    assert val == "{{'web'}, {'discover'}}"
+
+
 def test_given_complex_when_eval_then_return_string():
     s = "9173710294242221J"
     config = {}