Bump github.com/lib/pq from 1.7.0 to 1.7.1

Bumps [github.com/lib/pq](https://github.com/lib/pq) from 1.7.0 to 1.7.1.
- [Release notes](https://github.com/lib/pq/releases)
- [Commits](https://github.com/lib/pq/compare/v1.7.0...v1.7.1

)

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