mattermost-cloud-monitoring

MM-30012 Removing old Prometheus master and client, adding Thanos and Prometheus operator deployment, adding blackbox target discovery microservice, cleaning prometheus dns discovery lambda (#196)

Add EC2 Instance quotas (#195)

[MM-30200] Add installation users, access and secret keys in secret manager, policies for s3 bucket access. (#194)

check which lb type we need to use to create the correct alarm (#193)

Private DNS for mattermost-cloud is removed (#189)