Bump NServiceBus.Testing from 7.1.0 to 7.2.0 in /src (#114)
Bump NServiceBus.Testing from 7.1.0 to 7.2.0 in /src (#114)

Bumps [NServiceBus.Testing](https://github.com/Particular/NServiceBus.Testing) from 7.1.0 to 7.2.0.
- [Release notes](https://github.com/Particular/NServiceBus.Testing/releases)
- [Commits](https://github.com/Particular/NServiceBus.Testing/compare/7.1.0...7.2.0)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
SimonCropp/NServiceBus.Serilog