Continue on error for PowerShell 5.1 CI

It is too flaky to reliably trust. Failures should be manually checked
but not block merging.

Author: andyleejordan

.vsts-ci/azure-pipelines-ci.yml

@@ -32,6 +32,7 @@ jobs:
   - template: templates/ci-general.yml
     parameters:
       pwsh: false
+  continueOnError: true
 
 - job: windows2022pwsh
   displayName: Windows 2022 PowerShell 7
@@ -48,6 +49,7 @@ jobs:
   - template: templates/ci-general.yml
     parameters:
       pwsh: false
+  continueOnError: true
 
 - job: windows2019pwsh
   displayName: Windows 2019 PowerShell 7