[spring-cloud-fuction-adapter-azure-web] Make AZURE_WEB_ADAPTER_NAME configurable

[alxmrtn-kroger]

Is your feature request related to a problem? Please describe.
Our API routes look unattractive with /AzureWebAdapter/ stuck in the path.

Describe the solution you'd like
Change AZURE_WEB_ADAPTER_NAME from a static variable to a value that can be configured. This allows us to customize the function name as well as the root path.

It would be even better if the function name was decoupled from the base path of the function so both could be configured separately.

Additional context
Offending line of code: https://github.com/spring-cloud/spring-cloud-function/blob/main/spring-cloud-function-adapters/spring-cloud-function-adapter-azure-web/src/main/java/org/springframework/cloud/function/adapter/azure/web/AzureWebProxyInvoker.java#L59

[end-user]

I was looking at this; the problem is the value is static final, and is used to set the function name in the annotations. This means it gets baked into the dependency. You could customize the dependency and build/call your own. To fully customize it would require a lot more code, though, I think.

[github-actions]

This issue has been stale for over 60 days