COMP: Update Linux CI images to ubuntu-22.04

Support for ubuntu-20.04 was deprecated:

  https://devblogs.microsoft.com/devops/upcoming-updates-for-azure-pipelines-agents-images/

Author: thewtex

Testing/ContinuousIntegration/AzurePipelinesLinux.yml

@@ -31,7 +31,7 @@ jobs:
   timeoutInMinutes: 0
   cancelTimeoutInMinutes: 300
   pool:
-    vmImage: ubuntu-20.04
+    vmImage: ubuntu-22.04
   steps:
     - checkout: self
       clean: true
@@ -108,7 +108,7 @@ jobs:
   timeoutInMinutes: 0
   cancelTimeoutInMinutes: 300
   pool:
-    vmImage: ubuntu-20.04
+    vmImage: ubuntu-22.04
   steps:
     - checkout: self
       clean: true

Testing/ContinuousIntegration/AzurePipelinesLinuxPython.yml

@@ -31,7 +31,7 @@ jobs:
   timeoutInMinutes: 0
   cancelTimeoutInMinutes: 300
   pool:
-    vmImage: ubuntu-20.04
+    vmImage: ubuntu-22.04
   steps:
     - checkout: self
       clean: true