[FrontDoor] az network front-door waf-policy managed-rules add: Fix managed-rule add issue for Microsoft_DefaultRuleSet with version 2.0 or higher

[t-bzhan]

Fix managed-rule add issue for Microsoft_DefaultRuleSet with version 2.0 or higher.
This PR aims to fix Azure/azure-cli#24148

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[yonzhan]

FrontDoor

[azclibot]

[Release] Update index.json for extension [ front-door ] : https://dev.azure.com/azclitools/internal/_build/results?buildId=9194&view=results