Fix PR creation in emitter pipeline

eng/packages/http-client-csharp-mgmt/ci.yml

@@ -54,6 +54,7 @@ extends:
     ${{ if eq(variables['System.TeamProject'], 'internal') }}:
       ${{ if eq(variables['Build.Reason'], 'Manual') }}:
         ShouldPublish: ${{ parameters.ShouldPublish }}
+        ShouldRegenerate: ${{ parameters.ShouldRegenerate }}
         ${{ if startswith(variables['Build.SourceBranch'], 'refs/pull/') }}:  # PR ref's can't be published to public, even in a manual run
           PublishPublic: false
           PublishDependsOnTest: false

eng/packages/http-client-csharp/ci.yml

@@ -52,6 +52,7 @@ extends:
     ${{ if eq(variables['System.TeamProject'], 'internal') }}:
       ${{ if eq(variables['Build.Reason'], 'Manual') }}:
         ShouldPublish: ${{ parameters.ShouldPublish }}
+        ShouldRegenerate: ${{ parameters.ShouldRegenerate }}
         ${{ if startswith(variables['Build.SourceBranch'], 'refs/pull/') }}:  # PR ref's can't be published to public, even in a manual run
           PublishPublic: false
           PublishDependsOnTest: false

eng/scripts/typespec/Initialize-WorkingDirectory.ps1

@@ -55,6 +55,9 @@ function Initialize-Package($emitterPackagePath) {
                 $emitterVersion = "$($emitterVersion.Split('-')[0])$PrereleaseSuffix"
                 Write-Host "Updating version package.json to the new emitter version`n"
                 Invoke-LoggedCommand "npm pkg set version=$emitterVersion"
+
+                Write-Host "Setting output variable 'emitterVersion' to $emitterVersion"
+                Write-Host "##vso[task.setvariable variable=emitterVersion;isOutput=true]$emitterVersion"
             }
 
             if ($UseTypeSpecNext) {