chore(deps): bump harlequin-postgres from 0.3.0 to 0.4.0

Bumps harlequin-postgres from 0.3.0 to 0.4.0.

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

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