Allow disabling automatic heap dumps by default #2971

Our QA team suffers from LeakCanary automatically triggering heap dumps during testing, while developers still want automatic dumps during development.

Could you provide a simple configuration to make automatic heap dumping disabled by default, with developers able to explicitly enable it when needed?

Ideally:

LeakCanary.config = LeakCanary.config.copy(
    dumpHeap = false
)

The goal is no automatic heap dumps by default, without disabling LeakCanary’s leak detection/notifications.