Turbo loader item options type too strict

### Link to the code that reproduces this issue https://github.com/Netail/repro-next-typescript-next-config ### To Reproduce 1. Install dependencies; `yarn install` 2. Inspect `next.config.ts` 3. Svgr options clash with turbo options type ### Current vs. Expected behavior The turbo loader options type are a bit too strict compared to what's allowed by e.g. the SVGR plugin options ### Provide environment information ```bash Operating System: Platform: darwin Arch: arm64 Version: Darwin Kernel Version 24.1.0: Thu Oct 10 21:03:15 PDT 2024; root:xnu-11215.41.3~2/RELEASE_ARM64_T6000 Available memory (MB): 32768 Available CPU cores: 10 Binaries: Node: 22.11.0 npm: 10.9.0 Yarn: 1.22.22 pnpm: 9.6.0 Relevant Packages: next: 15.1.3 // Latest available version is detected (15.1.3). eslint-config-next: N/A react: 19.0.0 react-dom: 19.0.0 typescript: 5.7.2 Next.js Config: output: N/A ``` ### Which area(s) are affected? (Select all that apply) TypeScript ### Which stage(s) are affected? (Select all that apply) next dev (local) ### Additional context _No response_