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

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

Author: pre-commit-ci[bot]

src/check_jsonschema/cli/parse_result.py

@@ -11,10 +11,7 @@
 from ..regex_variants import RegexImplementation, RegexVariantName
 from ..transforms import Transform
 
-if sys.version_info >= (3, 8):
-    from typing import Literal
-else:
-    from typing_extensions import Literal
+from typing import Literal
 
 
 class SchemaLoadingMode(enum.Enum):