Refactor dotnet.yml to update Azure Login action to use version 2

Author: ahmedsza

.github/workflows/dotnet.yml

@@ -66,7 +66,7 @@ jobs:
     - uses: actions/checkout@v4
 
     - name: Azure Login
-      uses: azure/login@v1
+      uses: azure/login@v2
       with:
         client-id: ${{ secrets.AZURE_CLIENT_ID }}
         tenant-id: ${{ secrets.AZURE_TENANT_ID }}