feat(factory): register v1.2.2 accessor and validator

Update factory classes to support v1.2.2 schema version:
- PackageAccessorFactory: Register PackageAccessorV1_2_2
- ValidatorFactory: Register PackageValidatorV1_2_2

This enables automatic instantiation of v1.2.2 components when
processing packages with schema_version 1.2.2.

Author: LittleCoinCoin

hatch_validator/core/pkg_accessor_factory.py

@@ -70,6 +70,12 @@ def _ensure_accessors_loaded(cls) -> None:
             except ImportError as e:
                 logger.warning(f"Could not load v1.2.1 accessor: {e}")
 
+            try:
+                from hatch_validator.package.v1_2_2.accessor import HatchPkgAccessor as V122HatchPkgAccessor
+                cls.register_accessor("1.2.2", V122HatchPkgAccessor)
+            except ImportError as e:
+                logger.warning(f"Could not load v1.2.2 accessor: {e}")
+
     @classmethod
     def create_accessor_chain(cls, target_version: Optional[str] = None) -> HatchPkgAccessor:
         """Create appropriate accessor chain based on target version.

hatch_validator/core/validator_factory.py

@@ -72,6 +72,12 @@ def _ensure_validators_loaded(cls) -> None:
                 cls.register_validator("1.2.1", V121Validator)
             except ImportError as e:
                 logger.warning(f"Could not load v1.2.1 validator: {e}")
+
+            try:
+                from hatch_validator.package.v1_2_2.validator import Validator as V122Validator
+                cls.register_validator("1.2.2", V122Validator)
+            except ImportError as e:
+                logger.warning(f"Could not load v1.2.2 validator: {e}")
 
     @classmethod
     def create_validator_chain(cls, target_version: Optional[str] = None) -> Validator: