Request: Support newer localstack versions

[fspaniol]

Related to: https://github.com/orlangure/gnomock/pull/1012

As of now, we can't use gnomock.Start with the preset features because the healthcheck endpoints have been migrated to _localstack/health, and it's not even configurable from the outside.

[orlangure]

Hey @fspaniol and thank you for bringing this up. I have a pull request with a bunch of version upgrades. It should take care of supporting localstack up to 3.1.0

https://github.com/orlangure/gnomock/pull/1039