Bump github.com/lib/pq from 1.10.3 to 1.10.4

Bumps [github.com/lib/pq](https://github.com/lib/pq) from 1.10.3 to 1.10.4.
- [Release notes](https://github.com/lib/pq/releases)
- [Commits](https://github.com/lib/pq/compare/v1.10.3...v1.10.4

)

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

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