CLOUDP-363986: Bump Ops Manager Container Image version to 7.0.20

[mms-build-account]

Opened by Private Cloud Tools (PCT).

Ticket

CLOUDP-363986

Description

Bump Ops Manager container image version to 7.0.20.

Reviewer Checklist

Before merging this PR, verify the following:

• the following tasks are passing in Evergreen:
  • publish_ops_manager task (variant: publish_om70_images)
• the agent_version was updated correctly
• the tools_version was updated correctly

[github-actions]

⚠️ (this preview might not be accurate if the PR is not rebased on current master branch)

MCK 1.6.1 Release Notes

Bug Fixes

• Backed up the agent password in a secret for SCRAM authentication to prevent unnecessary password rotations.
• MongoDB Adding missing ownerrefs to ensure proper resource deletion by kubernetes.
• Single Cluster Deleting resources created by CRD now only happens on multi-cluster deployments. Single Cluster will solely rely on ownerrefs.
• MongoDB, MongoDBOpsManager: Improve validation for featureCompatibilityVersion field in MongoDB and MongoDBOpsManager spec.
  The field now enforces proper semantic versioning. Previously, invalid semver values could be accepted,
  potentially resulting in incorrect configurations.