Turbopack: Fix sst filter handling and order for meta files (#80147)
### What?
* fixes a bug where it crashes with `Unable to open static sorted file 00000286.sst` after a compaction which leaves a partial meta file.
meta files need to be handled in reverse order as higher sequence numbers override lower ones
* fixes another bug where SST files in meta files were processed in incorrect order
This could cause reading outdated values, maybe causing the incorrect graph problem or stale tasks/errors