Update dependabot.yml

Author: binon

.github/dependabot.yml

@@ -6,7 +6,7 @@
 version: 2
 registries:
   private-nuget:
-    type: nuget
+    type: nuget-feed
     url: "https://pkgs.dev.azure.com/e-LfH/_packaging/LearningHubFeed/nuget/v3/index.json"
     username: "kevin.whittaker" 
     password: ${{ secrets.AZURE_DEVOPS_PAT }}