refactor: Unify all json.(loads|dumps) usage to utils.json (#28702)

Co-authored-by: Eyal Ezer <eyal.ezer@ge.com>

tests/unit_tests/db_engine_specs/test_bigquery.py

@@ -17,7 +17,6 @@
 
 # pylint: disable=line-too-long, import-outside-toplevel, protected-access, invalid-name
 
-import json
 from datetime import datetime
 from typing import Optional
 
@@ -30,6 +29,7 @@ from sqlalchemy_bigquery import BigQueryDialect
 
 from superset.sql_parse import Table
 from superset.superset_typing import ResultSetColumnType
+from superset.utils import json
 from tests.unit_tests.db_engine_specs.utils import assert_convert_dttm
 from tests.unit_tests.fixtures.common import dttm  # noqa: F401
 

tests/unit_tests/db_engine_specs/test_databricks.py

@@ -16,7 +16,6 @@
 # under the License.
 # pylint: disable=unused-argument, import-outside-toplevel, protected-access
 
-import json
 from datetime import datetime
 from typing import Optional
 
@@ -25,6 +24,7 @@ from pytest_mock import MockerFixture
 
 from superset.db_engine_specs.databricks import DatabricksNativeEngineSpec
 from superset.errors import ErrorLevel, SupersetError, SupersetErrorType
+from superset.utils import json
 from tests.unit_tests.db_engine_specs.utils import assert_convert_dttm
 from tests.unit_tests.fixtures.common import dttm  # noqa: F401
 

tests/unit_tests/db_engine_specs/test_duckdb.py

@@ -15,7 +15,6 @@
 # specific language governing permissions and limitations
 # under the License.
 
-import json
 from datetime import datetime
 from typing import Optional
 
@@ -23,6 +22,7 @@ import pytest
 from pytest_mock import MockerFixture
 
 from superset.config import VERSION_STRING
+from superset.utils import json
 from tests.unit_tests.db_engine_specs.utils import assert_convert_dttm
 from tests.unit_tests.fixtures.common import dttm  # noqa: F401
 

tests/unit_tests/db_engine_specs/test_gsheets.py

@@ -17,7 +17,6 @@
 
 # pylint: disable=import-outside-toplevel, invalid-name, line-too-long
 
-import json
 from typing import TYPE_CHECKING
 from urllib.parse import parse_qs, urlparse
 
@@ -30,6 +29,7 @@ from superset.errors import ErrorLevel, SupersetError, SupersetErrorType
 from superset.exceptions import SupersetException
 from superset.sql_parse import Table
 from superset.superset_typing import OAuth2ClientConfig
+from superset.utils import json
 from superset.utils.oauth2 import decode_oauth2_state
 
 if TYPE_CHECKING:

tests/unit_tests/db_engine_specs/test_snowflake.py

@@ -17,7 +17,6 @@
 
 # pylint: disable=import-outside-toplevel
 
-import json
 from datetime import datetime
 from typing import Optional
 from unittest import mock
@@ -27,6 +26,7 @@ from pytest_mock import MockerFixture
 from sqlalchemy.engine.url import make_url
 
 from superset.errors import ErrorLevel, SupersetError, SupersetErrorType
+from superset.utils import json
 from tests.unit_tests.db_engine_specs.utils import assert_convert_dttm
 from tests.unit_tests.fixtures.common import dttm  # noqa: F401
 

tests/unit_tests/db_engine_specs/test_trino.py

@@ -16,7 +16,6 @@
 # under the License.
 # pylint: disable=unused-argument, import-outside-toplevel, protected-access
 import copy
-import json
 from datetime import datetime
 from typing import Any, Optional
 from unittest.mock import MagicMock, Mock, patch
@@ -41,6 +40,7 @@ from superset.db_engine_specs.exceptions import (
 )
 from superset.sql_parse import Table
 from superset.superset_typing import ResultSetColumnType, SQLAColumnType, SQLType
+from superset.utils import json
 from superset.utils.core import GenericDataType
 from tests.unit_tests.db_engine_specs.utils import (
     assert_column_spec,