Description of the change

Right now we always have to manually create PRs to update the default image version to the latest one. We should automate this to automatically create the PRs. We could also enable automerge so that it gets merged if the pipeline is green. I don't think there is a possibility it could break something for us.

Benefits

No manual PR work, faster updates to new versions.

Possible drawbacks

None really.

Additional information

Technically we don't need to do this as the chart is version agnostic. We could instead remove the default version and force everyone to always set the version themselves. That way we also have less "useless" releases where only the default version was changed. This would be a breaking change though so we might not want to do it.