chore(python-testing): move memoized tests to unit tests (#15507)

* chore: move memoized test into a separated file

create integration test workflow

* chore: create unit test workflow to run purely pytest

* fix: bad reference

* fix: remove pip requirements bc there aren't any yet

* temp: install unit dependencies directly

* fix: --rootdir=

* fix: try to run only unit test

* chore: decouple memoized as separated module

* fix: bring back dependencies bc superset top-level module is coupled to flask and others so no reason no to do it

* fix: reference

* fix: pre-commit

* fix: pylint

superset/models/datasource_access_request.py

@@ -23,7 +23,7 @@ from sqlalchemy import Column, Integer, String
 from superset import app, db, security_manager
 from superset.connectors.connector_registry import ConnectorRegistry
 from superset.models.helpers import AuditMixinNullable
-from superset.utils import core as utils
+from superset.utils.memoized import memoized
 
 if TYPE_CHECKING:
     from superset.connectors.base.models import BaseDatasource
@@ -55,7 +55,7 @@ class DatasourceAccessRequest(Model, AuditMixinNullable):
         return self.get_datasource
 
     @datasource.getter  # type: ignore
-    @utils.memoized
+    @memoized
     def get_datasource(self) -> "BaseDatasource":
         ds = db.session.query(self.cls_model).filter_by(id=self.datasource_id).first()
         return ds