Fix M.C.Analyzers to nuget.org feed

Author: christophwille

NuGet.config

@@ -12,6 +12,7 @@
       <package pattern="*" />
       <package pattern="Microsoft.DiaSymReader.Native" />
       <package pattern="Microsoft.DiaSymReader" />
+	  <package pattern="Microsoft.CodeAnalysis.Analyzers" />
     </packageSource>
     <packageSource key="dotnet10-transport">
       <package pattern="ILCompiler.Reflection.ReadyToRun.Experimental" />