build(deps-dev): bump typescript in /services/discord-gateway

Bumps [typescript](https://github.com/microsoft/TypeScript) from 5.9.3 to 7.0.2.
- [Release notes](https://github.com/microsoft/TypeScript/releases)
- [Commits](https://github.com/microsoft/TypeScript/compare/v5.9.3...v7.0.2)

---
updated-dependencies:
- dependency-name: typescript
  dependency-version: 7.0.2
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

services/discord-gateway/package.json

@@ -51,7 +51,7 @@
     "@types/ws": "^8.18.1",
     "drizzle-kit": "^0.31.10",
     "tsx": "^4.22.2",
-    "typescript": "^5.9.3",
+    "typescript": "^7.0.2",
     "vitest": "latest"
   }
 }