remove built-in pipeline template user field (#27184)

Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>

api/migrations/versions/2025_10_21_1430-ae662b25d9bc_remove_builtin_template_user.py

@@ -0,0 +1,36 @@
+"""remove-builtin-template-user
+
+Revision ID: ae662b25d9bc
+Revises: d98acf217d43
+Create Date: 2025-10-21 14:30:28.566192
+
+"""
+from alembic import op
+import models as models
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = 'ae662b25d9bc'
+down_revision = 'd98acf217d43'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+
+    with op.batch_alter_table('pipeline_built_in_templates', schema=None) as batch_op:
+        batch_op.drop_column('updated_by')
+        batch_op.drop_column('created_by')
+
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('pipeline_built_in_templates', schema=None) as batch_op:
+        batch_op.add_column(sa.Column('created_by', sa.UUID(), autoincrement=False, nullable=False))
+        batch_op.add_column(sa.Column('updated_by', sa.UUID(), autoincrement=False, nullable=True))
+
+    # ### end Alembic commands ###