Adds the missing AUTOINCREMENT keyword to migrate_spec (#708)

spec/integration/cli/db/migrate_spec.rb

@@ -51,7 +51,7 @@
         db = Pathname.new("db").join("#{project}_development.sqlite")
 
         users = `sqlite3 #{db} ".schema users"`
-        expect(users).to include("CREATE TABLE `users`(`id` integer DEFAULT (NULL) NOT NULL PRIMARY KEY, `name` varchar(255) DEFAULT (NULL) NULL);")
+        expect(users).to include("CREATE TABLE `users`(`id` integer DEFAULT (NULL) NOT NULL PRIMARY KEY AUTOINCREMENT, `name` varchar(255) DEFAULT (NULL) NULL);")
 
         version = `sqlite3 #{db} "SELECT filename FROM schema_migrations ORDER BY filename DESC LIMIT 1"`
         expect(version).to include("create_users")