Skip migrations check for backwards compatibility tests (#4294)

This prevents running into timeouts when your feature branch misses a
migration already on main.

Author: philippthun

spec/support/bootstrap/spec_bootstrap.rb

@@ -32,7 +32,11 @@ def self.init(recreate_test_tables: true, do_schema_migration: true)
         db_resetter.recreate_tables(without_migration: !do_schema_migration)
       end
 
-      DB.load_models(db_config.config, db_config.db_logger)
+      if do_schema_migration
+        DB.load_models(db_config.config, db_config.db_logger)
+      else
+        DB.load_models_without_migrations_check(db_config.config, db_config.db_logger)
+      end
     end
 
     def self.seed