Fix import (#9566)

packages/backend/src/core/RoleService.ts

@@ -8,7 +8,7 @@ import { DI } from '@/di-symbols.js';
 import { bindThis } from '@/decorators.js';
 import { MetaService } from '@/core/MetaService.js';
 import { UserCacheService } from '@/core/UserCacheService.js';
-import { RoleCondFormulaValue } from '@/models/entities/Role.js';
+import type { RoleCondFormulaValue } from '@/models/entities/Role.js';
 import { UserEntityService } from '@/core/entities/UserEntityService.js';
 import { StreamMessages } from '@/server/api/stream/types.js';
 import type { OnApplicationShutdown } from '@nestjs/common';