build(deps): bump the production group

Bumps the production group in /services/backend with 4 updates: [ioredis](https://github.com/redis/ioredis), [pg](https://github.com/brianc/node-postgres/tree/HEAD/packages/pg), [pino](https://github.com/pinojs/pino) and [ws](https://github.com/websockets/ws).


Updates `ioredis` from 5.11.1 to 6.0.0
- [Release notes](https://github.com/redis/ioredis/releases)
- [Changelog](https://github.com/redis/ioredis/blob/main/CHANGELOG.md)
- [Commits](https://github.com/redis/ioredis/compare/v5.11.1...v6.0.0)

Updates `pg` from 8.22.0 to 8.23.0
- [Changelog](https://github.com/brianc/node-postgres/blob/master/CHANGELOG.md)
- [Commits](https://github.com/brianc/node-postgres/commits/pg@8.23.0/packages/pg)

Updates `pino` from 9.14.0 to 10.3.1
- [Release notes](https://github.com/pinojs/pino/releases)
- [Commits](https://github.com/pinojs/pino/compare/v9.14.0...v10.3.1)

Updates `ws` from 8.21.1 to 8.21.3
- [Release notes](https://github.com/websockets/ws/releases)
- [Commits](https://github.com/websockets/ws/compare/8.21.1...8.21.3)

---
updated-dependencies:
- dependency-name: ioredis
  dependency-version: 6.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: production
- dependency-name: pg
  dependency-version: 8.23.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: production
- dependency-name: pino
  dependency-version: 10.3.1
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: production
- dependency-name: ws
  dependency-version: 8.21.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: production
...

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

services/backend/package.json

@@ -21,18 +21,18 @@
     "drizzle-orm": "^0.45.2",
     "express": "^5.2.1",
     "helmet": "^8.1.0",
-    "ioredis": "^5.11.0",
-    "pg": "^8.21.0",
-    "pino": "^9.6.0",
+    "ioredis": "^6.0.0",
+    "pg": "^8.23.0",
+    "pino": "^10.3.1",
     "prom-client": "^15.1.3",
-    "ws": "^8.20.1",
+    "ws": "^8.21.3",
     "zod": "^4.4.3"
   },
   "devDependencies": {
     "@biomejs/biome": "latest",
     "@types/express": "^5.0.6",
     "@types/node": "^25.9.0",
-    "@types/pg": "^8.20.0",
+    "@types/pg": "^8.23.1",
     "@types/ws": "^8.18.1",
     "tsx": "^4.22.2",
     "typescript": "^5.9.3",