fix: aws issues that arose from going through the checklist

Description

Contains fixes and changes related to the AWS provider after running through the checklist.

Fixes:

• Minor pipeline rules so that infrastructure tests only run when scheduled.
• MongoDB for AWS now uses mongodb+srv:// URLs to conform to DO's format.
• Open edX S3 buckets are configured so that
  • Objects in the root of the bucket
  • Anything else isn't
• EKS provider is upgraded to the latest version
• K8s Dashboard version is so that it's consistent across deploys
• Metrics server that comes with the dashboard is disabled, in lieu of running our own metrics server.
• MongoDB
  • Passwords in the MongoDB connection string are URL encoded
  • Added extra vars required for the forum, SSL, Auth Mechanism and Auth Source

Once merged, I'll deploy a cluster on grove-stage-aws again.

Dependencies

• tutor-contrib-grove!14 (merged)
• https://github.com/overhangio/tutor-forum/pull/10

Testing instructions

I've deployed the changes to https://checklist-aws.kgcluster.opencraft.hosting.

• Check that you can access the discussion forums and post/upload
• Log into AWS and check the permissions on the edxapp bucket.
  • Objects in the root should be publically accessible
  • Any object within a folder should not be accessible without authentication

Checklist

If any of the items below is not applicable, do not remove them, but put a check in it.

• All providers include the new feature/change
• All affected providers can provision new clusters
• Unit tests are added/updated
• Documentation is added/updated
• The TOOLS_CONTAINER_IMAGE_VERSION in ci_vars.yml is updated
• The grove-template repository is updated