Added Application Gateway Availability Zone Rule

[ArmaanMcleod]

PR Summary

Fix #928

Created a Azure.AppGw.AvailabilityZone rule for the following types:

• Microsoft.Network/applicationGateways

PR Checklist

• PR has a meaningful title
• Summarized changes
• Change is not breaking
• This PR is ready to merge and is not Work in Progress
• Rule changes
  • Unit tests created/ updated
  • Rule documentation created/ updated
  • Link to a filed issue
  • Change log has been updated with change under unreleased section
• Other code changes
  • Unit tests created/ updated
  • Link to a filed issue
  • Change log has been updated with change under unreleased section

[ArmaanMcleod]

For some reason running the Rule docs task is not generating the rule changes for Azure.All, Azure.Default or Azure.Preview. Trying to see if my markdown files are incorrect or something.

[BernieWhite]

@ArmaanMcleod could be a regression with PSRule v1.7.x are you running v1.7.1? If you are try v1.6.0.

[ArmaanMcleod]

@ArmaanMcleod could be a regression with PSRule v1.7.x are you running v1.7.1? If you are try v1.6.0.

Ah that seems to fix it. Thanks @BernieWhite.

[BernieWhite]

@ArmaanMcleod Nice! All good to merge or add the config doc consolidation.

[BernieWhite]

@ArmaanMcleod Armaan Dhaliwal-McLeod FTE could be a regression with PSRule v1.7.x are you running v1.7.1? If you are try v1.6.0.

Did v1.7.1 resolve the issue? Or is there an untracked bug that we need to address in v1.7.x?

[ArmaanMcleod]

@ArmaanMcleod Armaan Dhaliwal-McLeod FTE could be a regression with PSRule v1.7.x are you running v1.7.1? If you are try v1.6.0.

Did v1.7.1 resolve the issue? Or is there an untracked bug that we need to address in v1.7.x?

Yeah this was resolved by downgrading my PSRule from 1.7.1 to 1.6.0. I can probably create an issue about this. Basically only docs/en/rules/module.md and docs/en/rules/resource.md were only being generated with 1.7.1.

[BernieWhite]

@ArmaanMcleod Nice work! All good to merge.