chore(deps): Bump pg-types from 4.0.1 to 4.1.0 in /examples/node-pg

Bumps [pg-types](https://github.com/brianc/node-pg-types) from 4.0.1 to 4.1.0.
- [Commits](brianc/node-pg-types@v4.0.1...v4.1.0)

---
updated-dependencies:
- dependency-name: pg-types
  dependency-version: 4.1.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Author: dependabot[bot]