fix(migrations): disable foreign keys for migrating tenants

migrations/sqlite/0000003_tenant.up.sql

@@ -1,3 +1,5 @@
+PRAGMA foreign_keys = 0;
+
 CREATE TABLE tenants (
     id TEXT PRIMARY KEY,
     label TEXT NOT NULL,
@@ -49,4 +51,6 @@ CREATE TABLE specs
 
 INSERT INTO specs SELECT id, agent_id, name, revision, data, created_at, updated_at, 0 FROM _specs;
 
-DROP TABLE _specs;
+DROP TABLE _specs;
+
+PRAGMA foreign_keys = 1;