Mattermost operator uses deprecated `Ingress` API Version

time="2021-09-27T19:17:39Z" level=error msg="[opr] Problem running manager" error="no matches for kind \"Ingress\" in version \"networking.k8s.io/v1beta1\""

Upstream PR supports this (https://github.com/mattermost/mattermost-operator/pull/243) so just waiting on a new operator to be released with this PR. If needed we can bump the upstream folks and request a new release.

Also this issue would resolve the problem since we could just disable the ingress.

AC:

• Update operator to latest version, ensure that is uses the newer ingress API version and can run on k8s 1.22