Fix for issue NETSDK1150 (#1981)

Author: OlegOLK

src/BenchmarkDotNet/Templates/CsProj.txt

@@ -24,6 +24,8 @@
     <!-- we set LangVersion after $COPIEDSETTINGS$ which might contain LangVersion copied from the benchmarks project -->
     <LangVersion Condition="'$(LangVersion)' == '' Or ($([System.Char]::IsDigit('$(LangVersion)', 0)) And '$(LangVersion)' &lt; '7.3')">latest</LangVersion>
     <AppendTargetFrameworkToOutputPath>true</AppendTargetFrameworkToOutputPath>
+    <!-- fix for NETSDK1150: https://docs.microsoft.com/en-us/dotnet/core/compatibility/sdk/5.0/referencing-executable-generates-error -->
+    <ValidateExecutableReferencesMatchSelfContained>false</ValidateExecutableReferencesMatchSelfContained>
   </PropertyGroup>
 
   <ItemGroup>