[DRAFT] [ARO-22413] Remove use of local FP Authorizer to fix int env

[mrWinston]

Which issue this PR addresses:

Fixes ARO-22413

What this PR does / why we need it:

• Bringing back int means we'll need to have the INT RP create clusters in a separate, RH-owned int subscription
• This requires the use of a "mock" FP principal to grant the int RP access to the separate subscription.
• The new "mock" FP principal however would node be able to access the RPs subscription, only the "remote" subscription where clusters are created
• This means, we need to replace all uses of the FP credential in the local subscription with the MSI credentials which the RP already uses

Changes:

• Replace all uses of localFPAuthorizer with the MSIAuthorizer
• Grant the RPs MSI all permissions previously granted to the Local FP
• Related PR in sdp-pipelines grants additional permissions to rp msi: https://msazure.visualstudio.com/AzureRedHatOpenShift/_git/sdp-pipelines/pullrequest/14640053?_a=files

Test plan for issue:

• Currently testing in int
• will require canary deployment to make sure other environments are not affected by the change

Is there any documentation that needs to be updated for this PR?

• tbd

How do you know this will function as expected in production?

• tbd