Update VMToolsManagement.psm1

Update the quotes on line 1222 so that the module import no longer errors out.

Modules/VMToolsManagement/VMToolsManagement.psm1

@@ -1219,7 +1219,7 @@ Function Invoke-VMToolsUpgradeInVMs {
 
     End {
         #Verify all threads completed
-        while (($jobs | Where-Object {$_.Handle.iscompleted -ne ‘Completed’}).Count -gt 0) {
+        while (($jobs | Where-Object {$_.Handle.iscompleted -ne "Completed"}).Count -gt 0) {
             Start-Sleep -Seconds 5
         }