1. Proposed title of this feature request
helm values files wildcard in multi source

2. What is the nature and description of the request?

Add the availability to inject helm values files with wildcard in Application and ApplicationSet.

More details: https://github.com/argoproj/argo-cd/issues/18078

3. Why does the customer need this? (List the business requirements here)
As generator cannot merge all the files (matrix / merge are limitated to 2 levels) it can be good to use * in valuesFile for helm.

Specially because argo have this really good capacity to load files from external git repo ! This allow to manage external values files woth auto loading and avoid to change the application to inject new data. As the files are merge, it will be really simple to split data files.

4. List any affected packages or components.
GitOps
Application
ApplicationSet