Set property in Templating build to not use AppHost (#1346)

* Set UseAppHost=false for templating to avoid loading Microsoft.NETCore.App.Host.linux-x64

* Update prebuilt baseline

Author: dseefeld

repos/templating.proj

@@ -9,6 +9,7 @@
     <BuildCommandArgs>--restore --pack --configuration $(Configuration) $(OutputVersionArgs)</BuildCommandArgs>
     <BuildCommandArgs>$(BuildCommandArgs) $(FlagParameterPrefix)warnasError $(ArcadeFalseBoolBuildArg)</BuildCommandArgs>
     <BuildCommandArgs>$(BuildCommandArgs) /p:PackSpecific=true</BuildCommandArgs>
+    <BuildCommandArgs>$(BuildCommandArgs) /p:UseAppHost=false</BuildCommandArgs>
 
     <LogVerbosityOptOut>true</LogVerbosityOptOut>
     <BuildCommandArgs>$(BuildCommandArgs) -v $(LogVerbosity)</BuildCommandArgs>