move to secure image

Author: SteveL-MSFT

yaml/ci.yml

@@ -21,9 +21,10 @@ resources:
 
 stages:
 - stage: Build
-  pool:
-    vmImage: windows-latest
   displayName: Build Microsoft.PowerShell.TextUtility
+  pool: PowerShell1ES
+    demands:
+    - ImageOverride -equals PSMMS2019-Secure
   jobs:
   - job: Build
     displayName: Build

yaml/releaseBuild.yml

@@ -44,8 +44,9 @@ stages:
   jobs:
   - job: 'ReleaseBuild'
     displayName: Release Build
-    pool:
-      name: PowerShell1ES
+    pool: PowerShell1ES
+      demands:
+      - ImageOverride -equals PSMMS2019-Secure
     steps:
     - pwsh: |
         # build agents get reused so we make sure to remove the old archive
@@ -61,8 +62,9 @@ stages:
     - group: ESRP
     displayName: Signing Build
     dependsOn: 'ReleaseBuild'
-    pool:
-      name: PowerShell1ES
+    pool: PowerShell1ES
+      demands:
+      - ImageOverride -equals PSMMS2019-Secure
     steps:
     - powershell: |
         Get-ChildItem -Path env: