Bump pglast from 3.4 to 5.0

Bumps [pglast](https://github.com/lelit/pglast) from 3.4 to 5.0.
- [Release notes](https://github.com/lelit/pglast/releases)
- [Changelog](https://github.com/lelit/pglast/blob/v4/CHANGES.rst)
- [Commits](lelit/pglast@v3.4...v5.0)

---
updated-dependencies:
- dependency-name: pglast
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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Author: dependabot[bot]