Update Ubuntu 20.04 buildtools containers to Ubuntu 22.04

Co-authored-by: mconnew <[email protected]>

Author: Copilot

azure-pipelines-arcade-PR.yml

@@ -40,8 +40,8 @@ variables:
 
 resources:
   containers:
-  - container: ubuntu_2004_20211215
-    image: mcr.microsoft.com/dotnet-buildtools/prereqs:ubuntu-20.04-coredeps
+  - container: ubuntu_2204
+    image: mcr.microsoft.com/dotnet-buildtools/prereqs:ubuntu-22.04-coredeps
 
 stages:
 - stage: Build
@@ -146,10 +146,10 @@ stages:
       - ${{ if eq(variables._RunAsPublic, True) }}:
         - job: Linux
           timeoutInMinutes: 90
-          container: ubuntu_2004_20211215
+          container: ubuntu_2204
           pool:
             name:  NetCore-Public
-            demands: ImageOverride -equals build.Ubuntu.2004.Amd64.Open
+            demands: ImageOverride -equals build.Ubuntu.2204.Amd64.Open
           variables:
           - _TestArgs: /p:ServiceUri=$(_serviceUri) /p:Root_Certificate_Installed=true /p:Client_Certificate_Installed=true /p:SSL_Available=true
           - _serviceUri:

eng/common/core-templates/job/source-build.yml

@@ -60,7 +60,7 @@ jobs:
       pool:
         ${{ if eq(variables['System.TeamProject'], 'public') }}:
           name: $[replace(replace(eq(contains(coalesce(variables['System.PullRequest.TargetBranch'], variables['Build.SourceBranch'], 'refs/heads/main'), 'release'), 'true'), True, 'NetCore-Svc-Public' ), False, 'NetCore-Public')]
-          demands: ImageOverride -equals build.ubuntu.2004.amd64
+          demands: ImageOverride -equals build.ubuntu.2204.amd64
         ${{ if eq(variables['System.TeamProject'], 'internal') }}:
           name: $[replace(replace(eq(contains(coalesce(variables['System.PullRequest.TargetBranch'], variables['Build.SourceBranch'], 'refs/heads/main'), 'release'), 'true'), True, 'NetCore1ESPool-Svc-Internal'), False, 'NetCore1ESPool-Internal')]
           image: 1es-mariner-2