Bump pg and @types/pg (#449)

Bumps [pg](https://github.com/brianc/node-postgres/tree/HEAD/packages/pg) and [@types/pg](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/pg). These dependencies needed to be updated together.

Updates `pg` from 8.11.0 to 8.11.3
- [Changelog](https://github.com/brianc/node-postgres/blob/master/CHANGELOG.md)
- [Commits](https://github.com/brianc/node-postgres/commits/[email protected]/packages/pg)

Updates `@types/pg` from 8.10.2 to 8.10.5
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/pg)

---
updated-dependencies:
- dependency-name: pg
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: "@types/pg"
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

backend/package.json

@@ -19,7 +19,7 @@
     "@types/jsonwebtoken": "^9.0.2",
     "@types/lodash": "^4.14.198",
     "@types/node": "^18.16.2",
-    "@types/pg": "^8.10.2",
+    "@types/pg": "^8.10.5",
     "@types/spotify-api": "^0.0.22",
     "@types/spotify-web-api-node": "^5.0.7",
     "@types/spotify-web-playback-sdk": "^0.1.16",
@@ -33,7 +33,7 @@
     "jsonwebtoken": "^9.0.0",
     "lodash": "^4.17.21",
     "mixpanel": "^0.18.0",
-    "pg": "^8.11.0",
+    "pg": "^8.11.3",
     "prisma": "^4.13.0",
     "spotify-web-api-node": "^5.0.2",
     "typescript": "^5.0.4",