Bump pact from 1.21.0 to 1.22.2
Bump pact from 1.21.0 to 1.22.2

Bumps [pact](https://github.com/realestate-com-au/pact) from 1.21.0 to 1.22.2.
- [Release notes](https://github.com/realestate-com-au/pact/releases)
- [Commits](https://github.com/realestate-com-au/pact/commits)

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