Bump gds-api-adapters from 50.1.0 to 50.6.0
Bump gds-api-adapters from 50.1.0 to 50.6.0

Bumps [gds-api-adapters](https://github.com/alphagov/gds-api-adapters) from 50.1.0 to 50.6.0.
- [Changelog](https://github.com/alphagov/gds-api-adapters/blob/master/CHANGELOG.md)
- [Commits](https://github.com/alphagov/gds-api-adapters/compare/v50.1.0...v50.6.0)
alphagov/whitehall,alphagov/whitehall,alphagov/whitehall,alphagov/whitehall