Add `NEXT_DEPLOYMENT_ID` global (#86738)
- Adds a `process.env.NEXT_DEPLOYMENT_ID` -> `globalThis.NEXT_DEPLOYMENT_ID` replacement
- On startup, `globalThis.NEXT_DEPLOYMENT_ID` is initialized to `process.env.NEXT_DEPLOYMENT_ID_COMPILE_TIME`
This prepares for https://github.com/vercel/next.js/pull/88761 to replace `process.env.NEXT_DEPLOYMENT_ID_COMPILE_TIME` with reading `<html data-dpl-id>` so that we can remove the env var inlining
However, all of this is only done for Turbopack, because we cannot forward `globalThis.NEXT_DEPLOYMENT_ID` to web workers with Webpack easily.
