Cold App Start is not reported in version 6.5.0 on Android

[krystofwoldrich]

Description

The SDK reports all start-ups as warm since version 6.5.0 on Android.

[krystofwoldrich]

I can reproduce the behavior in our sample app on the main branch.
On v5 branch, the cold app start is reported correctly. EDIT: it also works correctly on v6 up to and including 6.4.0 - if you rely on this feature on Android, use version 6.4.0 until fixes are out.

The issue is that the start type is always unknown. The onActivityCreated lifecycle hook of the native SDK is not executed in version 6.5.0 and so the app start type is not set.