chore: Update mac environment from 10.15 to 11 (#5844)

build.yaml

@@ -13,7 +13,7 @@ trigger:
 
 variables:
     windowsImage: 'windows-2019'
-    macImage: 'macOS-10.15'
+    macImage: 'macOS-11'
     linuxImage: 'ubuntu-18.04'
 
 jobs:

pipeline/build-all-job-per-environment.yaml

@@ -3,7 +3,7 @@
 parameters:
     jobNameSuffix: ''
     windowsImage: 'windows-2019'
-    macImage: 'macOS-10.15'
+    macImage: 'macOS-11'
     linuxImage: 'ubuntu-18.04'
 
 jobs:

pipeline/e2e-job-per-environment.yaml

@@ -4,7 +4,7 @@
 parameters:
     jobNameSuffix: ''
     windowsImage: 'windows-2019'
-    macImage: 'macOS-10.15'
+    macImage: 'macOS-11'
     linuxImage: 'ubuntu-18.04'
 
 jobs:

pipeline/unified/build-unsigned-release-packages.yaml

@@ -10,7 +10,7 @@ trigger: none
 strategy:
     matrix:
         windows: { vmImage: 'windows-latest', platform: 'windows' }
-        mac: { vmImage: 'macOS-10.15', platform: 'mac' }
+        mac: { vmImage: 'macOS-11', platform: 'mac' }
         linux: { vmImage: 'ubuntu-18.04', platform: 'linux' }
 
 pool:

pipeline/unified/channel/sign-release-package-mac.yaml

@@ -9,7 +9,7 @@ parameters:
 jobs:
     - job: ${{ parameters.signedArtifactName }}
       pool:
-          vmImage: macOS-10.15
+          vmImage: macOS-11
       steps:
           - template: ../../install-node-prerequisites.yaml
 

pipeline/unified/unified-e2e-job-per-environment.yaml

@@ -4,7 +4,7 @@
 parameters:
     jobNameSuffix: ''
     windowsImage: 'windows-2019'
-    macImage: 'macOS-10.15'
+    macImage: 'macOS-11'
     linuxImage: 'ubuntu-18.04'
 
 jobs: