Fixed Azure.AppService.AvailabilityZone only detects premium by tier

[BenjaminEngeset]

Fixes #3034

Fixed Azure.AppService.AvailabilityZone only detects premium by tier property.

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• [x] Change is not breaking
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[BenjaminEngeset]

Ready for review @BernieWhite.

We have discussed earlier that it would be nice to have the AnyOf {} exit when first condition is met so the reasoning doesn't end up like this, with duplicate. Behavior like the -or operator would be highly appreciated.

[BenjaminEngeset]

Thanks for the great feedback @BernieWhite. I have adjusted accordingly now.