Use patched Konsist version (forked, 0.18.0) (#7719)

* Use a patched fork of Konsist

The patch contains code to ignore hidden folders in the root project: by default, Konsist scans *every single file* in the root directory except for a few exceptions, and hidden folders were not a part of that.

That means `.git`, `.github`, etc. would be scanned to for no good reason and even worse,  hidden folders used for worktrees would get scanned too, so Konsist would end up scanning the same project with small variations several times and OOMing / taking ages to finish.

* Make `Immutable/Stable` annotation check more performant. Also, fix case that was previously not found

features/joinroom/impl/src/main/kotlin/io/element/android/features/joinroom/impl/JoinRoomState.kt

@@ -107,6 +107,7 @@ sealed interface LoadedDetails {
     ) : LoadedDetails
 }
 
+@Immutable
 sealed interface JoinAuthorisationStatus {
     data object None : JoinAuthorisationStatus
     data class IsInvited(val inviteData: InviteData, val inviteSender: InviteSender?) : JoinAuthorisationStatus