output autogenerated files to IntermediateOutputPath to avoid conflicts between build processes for each TFM

Author: smdn

src/Smdn.Extensions.Mtp.LiquidTestReports/Smdn.Extensions.Mtp.LiquidTestReports.csproj

@@ -104,7 +104,7 @@ $(ReadmeFileNoticeSectionContent)
 
   <Target Name="WriteMtpExtensionInfo" BeforeTargets="BeforeBuild">
     <PropertyGroup>
-      <MtpExtensionInfoFilePath>$(BaseIntermediateOutputPath)ExtensionInfo.g.cs</MtpExtensionInfoFilePath>
+      <MtpExtensionInfoFilePath>$(IntermediateOutputPath)ExtensionInfo.g.cs</MtpExtensionInfoFilePath>
       <MtpExtensionInfoFileContent><![CDATA[
 // <autogenerated />
 #pragma warning disable CA1050