Disable Nerdbank.GitVersioning SetCloudBuildVersionVars: merge cf19a86 from mono

Author: lytico

Directory.Build.targets

@@ -5,4 +5,10 @@
     <!-- Ensure we preserve each coverlet output file per target framework: https://github.com/tonerdo/coverlet/issues/177 -->
     <CoverletOutput>$(OutputPath)/</CoverletOutput>
   </PropertyGroup>
+
+  <!-- Turn off NerdBank.GitVersioning for VS-Platform builds inside VSMac.
+  We don't want each project to set the build variables, causing problems during parallel builds. -->
+  <Target Name="SetCloudBuildVersionVars" />
+  <Target Name="SetCloudBuildNumberWithVersion" />
+
 </Project>