Fix tag for VpnServerConfiguration API:listRadiusSecrets as its causing conflict in documentation building process (#37725)

Co-authored-by: Prajjwal Kamboj <[email protected]>

Author: Nilambari

specification/network/resource-manager/Microsoft.Network/stable/2024-10-01/virtualWan.json

@@ -1379,7 +1379,7 @@
     "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Network/vpnServerConfigurations/{vpnServerConfigurationName}/listRadiusSecrets": {
       "post": {
         "tags": [
-          "vpnServerConfigurations"
+          "VpnServerConfigurations"
         ],
         "operationId": "vpnServerConfigurations_ListRadiusSecrets",
         "description": "List all Radius servers with respective radius secrets from VpnServerConfiguration.",