Restrict locations due to App Insights components availability

[pamelafox]

Purpose

Without this change, I selected "westcentralus" for the location, and got this error:
"Deployment Error Details:
LocationNotAvailableForResourceType: The provided location 'westcentralus' is not available for resource type 'microsoft.insights/components'. List of available regions for the resource type is 'eastus,southcentralus,northeurope,westeurope,southeastasia,westus2,uksouth,canadacentral,centralindia,japaneast,australiaeast,koreacentral,francecentral,centralus,eastus2,eastasia,westus,southafricanorth,northcentralus,brazilsouth,switzerlandnorth,norwayeast,norwaywest,australiasoutheast,australiacentral2,germanywestcentral,switzerlandwest,uaecentral,ukwest,japanwest,brazilsoutheast,uaenorth,australiacentral,southindia,westus3,koreasouth,swedencentral,canadaeast,jioindiacentral,jioindiawest,qatarcentral,southafricawest,germanynorth,polandcentral,israelcentral,italynorth,mexicocentral,spaincentral,newzealandnorth,chilecentral,indonesiacentral,malaysiawest'."

With this change, developers can only select one of those locations, so they should never get that error.

Does this introduce a breaking change?

When developers merge from main and run the server, azd up, or azd deploy, will this produce an error?
If you're not sure, try it out on an old environment.

[ ] Yes
[X] No

Does this require changes to learn.microsoft.com docs?

This repository is referenced by this tutorial
which includes deployment, settings and usage instructions. If text or screenshot need to change in the tutorial,
check the box below and notify the tutorial author. A Microsoft employee can do this for you if you're an external contributor.

[ ] Yes
[X] No

Type of change

[X] Bugfix
[ ] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Documentation content changes
[ ] Other... Please describe:

Code quality checklist

See CONTRIBUTING.md for more details.

N/A

[Copilot]

Pull Request Overview

This PR restricts the allowed Azure locations for deployment to prevent errors when provisioning Application Insights components. The change addresses a deployment failure that occurs when users select unsupported regions like "westcentralus" for Azure Application Insights resources.

• Added an @allowed parameter validation decorator to the location parameter
• Included all 55 supported regions for microsoft.insights/components resource type
• Added explanatory comment about the regional restrictions

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[Copilot]

Pull Request Overview

Copilot reviewed 1 out of 1 changed files in this pull request and generated no new comments.

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