build(deps): bump pg from 8.11.3 to 8.12.0 (#81)

Bumps [pg](https://github.com/brianc/node-postgres/tree/HEAD/packages/pg) from 8.11.3 to 8.12.0.
- [Changelog](https://github.com/brianc/node-postgres/blob/master/CHANGELOG.md)
- [Commits](https://github.com/brianc/node-postgres/commits/pg@8.12.0/packages/pg)

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

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Author: dependabot[bot]

package-lock.json

@@ -37,7 +37,7 @@
     "http-status": "^1.7.4",
     "js-yaml": "^4.1.0",
     "morgan": "^1.10.0",
-    "pg": "^8.11.3",
+    "pg": "^8.12.0",
     "pg-hstore": "^2.3.4",
     "sequelize": "^6.37.3",
     "stoppable": "^1.1.0",