Validate ck_user_has_mobile_or_other_auth constraint

This is second step out of two step migration.
We divided it like this to avoid potentially locking
production database for extended amounts of time.

migrations/versions/0357_validate_constraint.py

@@ -0,0 +1,23 @@
+"""
+
+Revision ID: 0357_validate_constraint
+Revises: 0356_add_webautn_auth_type
+Create Date: 2021-05-13 14:15:25.259991
+
+"""
+from alembic import op
+
+revision = '0357_validate_constraint'
+down_revision = '0356_add_webautn_auth_type'
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.execute('ALTER TABLE users VALIDATE CONSTRAINT "ck_user_has_mobile_or_other_auth"')
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    pass
+    # ### end Alembic commands ###