build(deps): bump github.com/lib/pq from 1.12.1 to 1.12.3 (#4016)

Bumps [github.com/lib/pq](https://github.com/lib/pq) from 1.12.1 to 1.12.3.
- [Release notes](https://github.com/lib/pq/releases)
- [Changelog](https://github.com/lib/pq/blob/master/CHANGELOG.md)
- [Commits](https://github.com/lib/pq/compare/v1.12.1...v1.12.3)

---
updated-dependencies:
- dependency-name: github.com/lib/pq
  dependency-version: 1.12.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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