Bump postgres from 3.3.4 to 3.4.3

Bumps [postgres](https://github.com/porsager/postgres) from 3.3.4 to 3.4.3.
- [Release notes](https://github.com/porsager/postgres/releases)
- [Changelog](https://github.com/porsager/postgres/blob/master/CHANGELOG.md)
- [Commits](porsager/postgres@v3.3.4...v3.4.3)

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

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