Testing builds with v3beta pool - newer MacOS (#74609)

eng/pipelines/common/xplat-setup.yml

@@ -145,7 +145,7 @@ jobs:
 
         # OSX Build Pool (we don't have on-prem OSX BuildPool
         ${{ if in(parameters.osGroup, 'OSX', 'MacCatalyst', 'iOS', 'iOSSimulator', 'tvOS', 'tvOSSimulator') }}:
-          vmImage: 'macOS-11'
+          vmImage: 'macos-11-v3beta'
 
         # Official Build Windows Pool
         ${{ if and(eq(parameters.osGroup, 'windows'), ne(variables['System.TeamProject'], 'public')) }}:

eng/pipelines/coreclr/perf-non-wasm-jobs.yml

@@ -416,7 +416,7 @@ jobs:
         nameSuffix: MACiOSAndroidMauiNet7
         isOfficialBuild: false
         pool:
-          vmImage: 'macos-11'
+          vmImage: 'macos-11-v3beta'
         extraStepsTemplate: /eng/pipelines/coreclr/templates/build-perf-maui-apps-net7.yml
         extraStepsParameters:
           rootFolder: '$(Build.SourcesDirectory)/artifacts/'
@@ -440,7 +440,7 @@ jobs:
         nameSuffix: MACiOSAndroidMauiNet6
         isOfficialBuild: false
         pool:
-          vmImage: 'macos-11'
+          vmImage: 'macos-11-v3beta'
         extraStepsTemplate: /eng/pipelines/coreclr/templates/build-perf-maui-apps-net6.yml
         extraStepsParameters:
           rootFolder: '$(Build.SourcesDirectory)/artifacts/'