Release check is failing for package when only one alpha version is presenton npm (Azure#21521)

Author: praveenkuttappan

eng/scripts/Language-Settings.ps1

@@ -38,7 +38,8 @@ function Get-javascript-PackageInfoFromRepo ($pkgPath, $serviceDirectory) {
 # Returns the npm publish status of a package id and version.
 function IsNPMPackageVersionPublished ($pkgId, $pkgVersion) {
   Confirm-NodeInstallation
-  $npmVersions = (npm show $pkgId versions)
+  $packageAndVersion = $pkgId + "@" + $pkgVersion
+  $npmVersion = (npm show $packageAndVersion version)
   if ($LastExitCode -ne 0) {
     npm ping
     if ($LastExitCode -eq 0) {
@@ -47,8 +48,7 @@ function IsNPMPackageVersionPublished ($pkgId, $pkgVersion) {
     Write-Host "Could not find a deployed version of $pkgId, and NPM connectivity check failed."
     exit(1)
   }
-  $npmVersionList = $npmVersions.split(",") | ForEach-Object { return $_.replace("[", "").replace("]", "").Trim() }
-  return $npmVersionList.Contains($pkgVersion)
+  return $npmVersion -eq $pkgVersion
 }
 
 # make certain to always take the package json closest to the top