revert: enable turbopack persistent caching

 ⚠ Turbopack's persistent cache has been deleted because we previously detected an internal error in Turbopack. Builds or page loads may be slower as a result.

This reverts commit d04f501.

Author: pan93412

next.config.ts

@@ -10,7 +10,6 @@ const nextConfig: NextConfig = {
       ["@swc-contrib/plugin-graphql-codegen-client-preset", { artifactDirectory: "./gql", gqlTagName: "graphql" }],
     ],
     ppr: "incremental",
-    turbopackPersistentCaching: true,
     inlineCss: true,
   },
 };