Bump pg from 8.8.0 to 8.11.3 in /strapi

Bumps [pg](https://github.com/brianc/node-postgres/tree/HEAD/packages/pg) from 8.8.0 to 8.11.3.
- [Changelog](https://github.com/brianc/node-postgres/blob/master/CHANGELOG.md)
- [Commits](https://github.com/brianc/node-postgres/commits/pg@8.11.3/packages/pg)

---
updated-dependencies:
- dependency-name: pg
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

strapi/package.json

@@ -14,7 +14,7 @@
     "@strapi/plugin-users-permissions": "4.20.2",
     "@strapi/strapi": "4.20.2",
     "better-sqlite3": "8.6.0",
-    "pg": "8.8.0"
+    "pg": "8.11.3"
   },
   "author": {
     "name": "A Strapi developer"