Story (Required)

Because of GITOPS-3073, the default installation namespace of the gitops operator could either be `openshift-operators` or `openshift-gitops-operator`. The must-gather currently only looks at the openshift-operators namespace for the gitops operator subscription, so it needs to be updated to work for either of them. 

Background (Required)

<Describes the context or background related to this story>

Out of scope

<Defines what is not included in this story>

Approach (Required)

Add a new function in https://github.com/redhat-developer/gitops-must-gather that figures out which namespace the gitops operator is installed in and use that in place of the hard-coded "openshift-operators" namespace. 

Dependencies

GITOPS-3073

Acceptance Criteria (Mandatory)

- Make a PR to https://github.com/redhat-developer/gitops-must-gather and merge it 

INVEST Checklist

Dependencies identified

Blockers noted and expected delivery timelines set

Design is implementable

Acceptance criteria agreed upon

Story estimated

Legend

Unknown

Verified

Unsatisfied

Done Checklist

• Code is completed, reviewed, documented and checked in
• Unit and integration test automation have been delivered and running cleanly in continuous integration/staging/canary environment
• Continuous Delivery pipeline(s) is able to proceed with new code included
• Customer facing documentation, API docs etc. are produced/updated, reviewed and published
• Acceptance criteria are met