AOT compatible: NuGet.Credentials (#7143)

Author: Nigusu-Allehu

src/NuGet.Core/NuGet.Credentials/NuGet.Credentials.csproj

@@ -9,6 +9,7 @@
     <XPLATProject>true</XPLATProject>
     <UsePublicApiAnalyzer>perTfm</UsePublicApiAnalyzer>
     <NoWarn>$(NoWarn);RS0041</NoWarn>
+    <IsAotCompatible>true</IsAotCompatible>
   </PropertyGroup>
 
   <PropertyGroup Condition=" '$(IsVsixBuild)' == 'true' ">