Add support for downloading a specific secure file

This is not an issue as it is a feature request. Can you please add support for downloading a specific (by name) secure file? Why: I have a flutter app and I'm saving the keys and certificates into the secure files. When I run my jobs (building the Android and iOS) and use download secure files it will download ALL secure files and what I want is to specify:

• when building the Android build to download the android related files (key.properties and keys)
• when building the iOS to download the iOS appropriate certificates.