Add provisioning mono back (#22395)

* Add provisioning mono back

* Bump to 206

eng/provisioning/provisioning.csx

@@ -2,8 +2,9 @@ if (IsMac)
 {
 	ForceJavaCleanup();
 	MicrosoftOpenJdk ("11.0.13.8.1");
-	//this is needed for tools on macos like nunit console or nuget.exe 
-	//Item("https://download.mono-project.com/archive/6.12.0/macos-10-universal/MonoFramework-MDK-6.12.0.199.macos10.xamarin.universal.pkg");
+	//this is needed for tools on macos like for nuget pack additional target and for classic xamarin projects
+	Item("https://download.mono-project.com/archive/6.12.0/macos-10-universal/MonoFramework-MDK-6.12.0.206.macos10.xamarin.universal.pkg");
+
 	AppleCodesignIdentity("Apple Development: Jonathan Dick (FJL7285DY2)", "https://dl.internalx.com/qa/code-signing-entitlements/components-mac-ios-certificate.p12");
 	AppleCodesignProfile("https://dl.internalx.com/qa/code-signing-entitlements/components-ios-provisioning.mobileprovision");
 	AppleCodesignProfile("https://dl.internalx.com/qa/code-signing-entitlements/components-mac-provisioning.mobileprovision");