MMSUbuntu22.04 -> ubuntu22.04 (#4561)

Co-authored-by: Konrad Jamrozik <kojamroz@microsoft.com>

eng/common/pipelines/templates/jobs/archetype-sdk-tests-generate.yml

@@ -30,7 +30,7 @@ parameters:
   default: azsdk-pool-mms-ubuntu-2204-general
 - name: OsVmImage
   type: string
-  default: MMSUbuntu22.04
+  default: ubuntu-22.04
 # This parameter is only necessary if there are multiple invocations of this template within the SAME STAGE.
 # When that occurs, provide a name other than the default value.
 - name: GenerateJobName

eng/common/pipelines/templates/jobs/prepare-pipelines.yml

@@ -21,7 +21,7 @@ jobs:
 - job: PreparePipelines
   pool:
     name: azsdk-pool-mms-ubuntu-2204-general
-    vmImage: MMSUbuntu22.04
+    vmImage: ubuntu-22.04
   steps:
     - template: /eng/common/pipelines/templates/steps/install-pipeline-generation.yml
     - template: /eng/common/pipelines/templates/steps/set-default-branch.yml

eng/common/pipelines/templates/stages/archetype-sdk-tool-pwsh.yml

@@ -26,7 +26,7 @@ stages:
               Image: windows-2022
             Linux:
               Pool: azsdk-pool-mms-ubuntu-2204-general
-              Image: MMSUbuntu22.04
+              Image: ubuntu-22.04
             Mac:
               Pool: Azure Pipelines
               Image: macos-11