Update bastion-nsg.md - Correct typo for procols (Ah --> Any)

[jp-poulin]

Correct "Ah" protocol to "Any" in the NSG rules

[prmerger-automator]

@jp-poulin : Thanks for your contribution! The author(s) and reviewer(s) have been notified to review your proposed change. @abell

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[ShannonLeavitt]

@AbdullahBell - You weren't automatically assigned to this PR because the author metadata is incorrect:

When you get a chance, could you open a PR in the private repo to fix the metadata?

IMPORTANT: When the changes are ready for publication, adding a #sign-off comment is the best way to signal that the PR is ready for the review team to merge.

#label:"aq-pr-triaged"
@MicrosoftDocs/public-repo-pr-review-team

[jp-poulin]

Looks like the "Ah" value is actually correct based on the documentation:
https://learn.microsoft.com/en-us/powershell/module/az.network/add-aznetworksecurityruleconfig?view=azps-14.4.0#-protocol

Not sure why the PowerShell values and portal values don't match. The portal will show "Ah" when PowerShell was used to set it up, but if you open the NSG rule, make no change and hit save, it will change it to "Any".

So this issue needs to be modified from updating a doc to somewhat challenging why the source parameter is not "Any".