Seperate dotnet run to handle src and samples separately (#12643)

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Author: markwallace-microsoft

.github/dependabot.yml

@@ -7,7 +7,7 @@ version: 2
 updates:
   # Maintain dependencies for nuget
   - package-ecosystem: "nuget"
-    directory: "dotnet/"
+    directory: "dotnet/src"
     schedule:
       interval: "cron"
       cronjob: "0 8 * * 4,0" # Every Thursday(4) and Sunday(0) at 8:00 UTC