Support CORS configuration via environment variables when not running in Linux consumption

[anthonychu]

What problem would the feature you're requesting solve? Please describe.

Currently, it's possible to configure CORS via environment variables, but the variables are only used when running in Linux consumption:

azure-functions-host/src/WebJobs.Script.WebHost/Configuration/CorsOptionsSetup.cs

Line 26 in 172c57f

if (_env.IsAnyLinuxConsumption())

It can be useful to configure CORS via environment variables, such as when running in a container. Would be great to allow this.

Describe the solution you'd like

Allow CORS configuration via environment variables when running outside Linux consumption.

Describe alternatives you've considered

Setting a variable named CONTAINER_NAME will cause the host to go down the same code path as Linux consumption, but on environments such as Container Apps or Kubernetes, setting that variable will provide the same container name to all running replicas/pods. This might have unintended consequences if other parts of the host uses the container name and expects it to be unique per host instance.

Additional context

Thread: https://hachyderm.io/@anthonychu/109400532768512364