[enhancement]: Add Login Cache to Azure CLI Task

[LPVRamos]

Task name

AzureCLI@2

Describe your feature request here

Enhancement
Add login caching to AzureCLI Task so that multiple calls to same azureSubscription do not trigger a re-login.

Context

Me and my team are working on a product that deploys several resources to Azure. In doing so our pipeline looks something like this:

- ${{ each resource in parameters.resources }}:
  - task: AzureCLI@2
    displayName: "Apply Resource ${{ resource}} settings"
    inputs:
      azureSubscription: 'some-connection'
      scriptType: 'bash'
      scriptLocation: 'inlineScript'
      inlineScript: |
        ...apply settings to azure resource
              
  #Deploy WebApp (example)
   - task: AzureWebApp@1
     displayName: "Deploy ${{ resource }}"
     inputs:
       azureSubscription: 'some-connection'
       appType: 'type'
       appName: ${{ resource }}
       resourceGroupName: 'some-group'
       package: 'some-directory'

   - task: AzureCLI@2
     displayName: "Extra settings that can only be done after deployment"
     inputs:
       azureSubscription: 'some-connection'
       scriptType: 'bash'
       scriptLocation: 'inlineScript'
       inlineScript: |
         ...apply extra settings to azure resource

The number of resources in question are 10+. This leads to 20+ azure login requests that take about 15 seconds each, totaling at around 5+ minutes per deployment.

My enhancement request would bring this down to a total of 1 request to azure login in this case.