Bump gds-api-adapters for pagination and redirects

Two main new features: the ability to traverse paginated responses in the content API and the ability to follow redirect responses from services, so we can change URLs in services without needing an immediate version bump in every application.

See [the GitHub comparison](https://github.com/alphagov/gds-api-adapters/compare/v4.1.3...v4.3.0) for full changes.