chore: create resource group before creating workload identity for local dev

[rakechill]

Description
make az-all was failing at az-create-workload-msi with RESOURCE GROUP NOT FOUND. Added az-mkrg target as prereq of workload identity creation to fix this. Also updated az- mkrg to check if the resource group exists before trying to create it.

How was this change tested?

• make az-all succeeded

Does this change impact docs?

• Yes, PR includes docs updates
• Yes, issue opened: #
• No

[charliedmcb]

This would break some commands. Wondering if we can just add the rg call instead.

[coveralls]

Pull Request Test Coverage Report for Build 7748318629

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 97.546%

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Totals
Change from base Build 7748148266:	0.0%
Covered Lines:	35741
Relevant Lines:	36640

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💛 - Coveralls

[charliedmcb]

lgtm

[charliedmcb]

no output is fine with me, but I would generally personally prefer make commands to output what commands they are using.

[charliedmcb]

lgtm.

Would like a screenshot of what running the command outputs added to the PR description