Add 'PYTHON|3.11' to runtimeStack input, in AzureFunctionApp@2 documentation

[isakengstrom]

Python 3.11 is supported by the AzureFunctionApp@2 task, but it's missing in the documentation.

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Document Details

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• ID: 87b190ff-4ca4-a7ca-381d-e97185d05df1
• Version Independent ID: 87b190ff-4ca4-a7ca-381d-e97185d05df1
• Content: AzureFunctionApp@2 - Azure Functions Deploy v2 task
• Content Source: task-reference/azure-function-app-v2.md
• Service: azure-devops-pipelines
• Sub-service: azure-devops-pipelines-tasks
• GitHub Login: @steved0x
• Microsoft Alias: sdanie