Fix SQLA imports new locations in migrations

lms/migrations/versions/5086e8b137b9_add_settings_server_default_and_not_.py

@@ -9,9 +9,8 @@
 import sqlalchemy as sa
 from alembic import op
 from sqlalchemy.dialects.postgresql import JSONB
-from sqlalchemy.ext.declarative import declarative_base
 from sqlalchemy.ext.mutable import MutableDict
-from sqlalchemy.orm import sessionmaker
+from sqlalchemy.orm import declarative_base, sessionmaker
 
 revision = "5086e8b137b9"
 down_revision = "7f9824ded172"

lms/migrations/versions/52755322151e_db_migration_to_back_fill_organizations.py

@@ -13,7 +13,7 @@
 
 import sqlalchemy as sa
 from alembic import op
-from sqlalchemy.ext.declarative import declarative_base
+from sqlalchemy.orm import declarative_base
 
 # revision identifiers, used by Alembic.
 revision = "52755322151e"

lms/migrations/versions/b99c4d910801_disable_provisioning_for_non-whitelisted_.py

@@ -10,8 +10,7 @@
 
 import sqlalchemy as sa
 from alembic import op
-from sqlalchemy.ext.declarative import declarative_base
-from sqlalchemy.orm import sessionmaker
+from sqlalchemy.orm import declarative_base, sessionmaker
 
 log = logging.getLogger(__name__)
 

lms/migrations/versions/db3779df3f44_back_fill_course_and_course_groups_exported_from_h_tables.py

@@ -15,9 +15,8 @@
 import sqlalchemy as sa
 from alembic import op
 from sqlalchemy.dialects.postgresql import JSONB
-from sqlalchemy.ext.declarative import declarative_base
 from sqlalchemy.ext.mutable import MutableDict
-from sqlalchemy.orm import sessionmaker
+from sqlalchemy.orm import declarative_base, sessionmaker
 
 revision = "7f9824ded172"
 down_revision = "3517eb6254e7"