[Smoke Tests] Ignore Known Incompatible Packages (Azure#33925)

* [Smoke Tests] Ignore Known Incompatible Packages

The focus of these changes is to define a set that contains the list of
packages which should not be included as references to the smoke tests.
This is necessary because some compatibility packages do not target
netstandard2.0, and the package source is unable to filter upstream to
restrict to the appropriate packages for the running target.

* Incorporating feedback

Author: jsquire

common/SmokeTests/SmokeTest/Update-Dependencies.ps1

@@ -7,6 +7,15 @@ param(
 
 . (Join-Path $PSScriptRoot ../../../eng/scripts/smoketest/Get-Package-Version.ps1)
 
+# Define a set that contains the list of packages which should not be included
+# as references to the smoke tests.  This is necessary because some compatibility
+# packages do not target netstandard2.0, and the package source is unable to
+# filter upstream to restrict to the appropriate packages for the running target.
+
+$packageExcludeSet = @(
+    "Microsoft.Azure.WebPubSub.AspNetCore"
+)
+
 function Log-Warning($message) {
     if ($CI) {
         Write-Host "##vso[task.logissue type=warning]$message"
@@ -67,6 +76,7 @@ Log-Info "Querying package information."
 $referenceUpdateCount = 0
 
 Get-SmokeTestPkgProperties -ArtifactsPath $ArtifactsPath
+| Where-Object { $packageExcludeSet -notcontains $_.Name }
 | Foreach-Object { $referenceUpdateCount += AddPackageReference $csproj $referenceNode $_ }
 
 # Save the project and report the outcome.  If no refrences were added, consider this