Schedule Lmax compactions after releasing snapshots holding range tombstones

Just like we do for point deletions in [`ComputeBottommostFilesMarkedForCompaction`](https://github.com/facebook/rocksdb/blob/4fce44fc8b8184f4800a792cf2753667e9efc9b3/db/version_set.cc#L2015-L2034), when we detect that the oldest snapshot covers all keys in a file in Lmax, and that file contains range deletions, we should mark the file as eligible for compaction.