[ARM] `azure bicep`: Use `AZURE_CLI_DISABLE_CONNECTION_VERIFICATION` when checking Bicep CLI versions

[shenglol]

Related command

az bicep

Description The az bicep commands check for the latest version of Bicep by sending an HTTP request, but when it doesn't respect AZURE_CLI_DISABLE_CONNECTION_VERIFICATION and always validate SSL certificates. The PR updates the code to check if SSL certificate verification should be skipped.

Testing Guide Running any az bicep commands with AZURE_CLI_DISABLE_CONNECTION_VERIFICATION set to true.

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[yonzhan]

ARM