chore: bump up @nestjs/throttler version to v6.4.0 (#9860)

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [@nestjs/throttler](https://redirect.github.com/nestjs/throttler) | [`6.3.0` -> `6.4.0`](https://renovatebot.com/diffs/npm/@nestjs%2fthrottler/6.3.0/6.4.0) | [![age](https://developer.mend.io/api/mc/badges/age/npm/@nestjs%2fthrottler/6.4.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/@nestjs%2fthrottler/6.4.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/@nestjs%2fthrottler/6.3.0/6.4.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/@nestjs%2fthrottler/6.3.0/6.4.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

<details>
<summary>nestjs/throttler (@&#8203;nestjs/throttler)</summary>

### [`v6.4.0`](https://redirect.github.com/nestjs/throttler/blob/HEAD/CHANGELOG.md#640)

[Compare Source](https://redirect.github.com/nestjs/throttler/compare/v6.3.0...v6.4.0)

##### Minor Changes

-   [`5cb4254`](https://redirect.github.com/nestjs/throttler/commit/5cb4254): Update to allow for support for Nest version 11

</details>

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packages/backend/server/package.json

@@ -37,7 +37,7 @@
     "@nestjs/platform-express": "^10.4.15",
     "@nestjs/platform-socket.io": "^10.4.15",
     "@nestjs/schedule": "^4.1.2",
-    "@nestjs/throttler": "6.3.0",
+    "@nestjs/throttler": "6.4.0",
     "@nestjs/websockets": "^10.4.15",
     "@node-rs/argon2": "^2.0.2",
     "@node-rs/crc32": "^1.10.6",