Bump govuk_document_types from 0.9.1 to 0.9.2
Bump govuk_document_types from 0.9.1 to 0.9.2

Bumps [govuk_document_types](https://github.com/alphagov/govuk_document_types) from 0.9.1 to 0.9.2.
- [Release notes](https://github.com/alphagov/govuk_document_types/releases)
- [Changelog](https://github.com/alphagov/govuk_document_types/blob/master/CHANGELOG.md)
- [Commits](https://github.com/alphagov/govuk_document_types/compare/v0.9.1...v0.9.2)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
alphagov/collections,alphagov/collections,alphagov/collections,alphagov/collections