fix(node/fs): promises not exporting fs constants (#21997)

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We were missing the `constants` export in the promise `fs` API which is
available in node.

```ts
import { constants, promises } from "node:fs";
import { constants as fsPromiseConstants } from "node:fs/promises";
console.log(constants === promises.constants); // logs: true
console.log(constants === fsPromiseConstants); // logs: true
```

Fixes https://github.com/denoland/deno/issues/21994

0 files changed, 0 insertions, 0 deletions