optimize read matches to reduce FileSystemPath calls (#75164)
### What?
`read_matches` is called for every request that need to be resolved. It used to call `FileSystemPath::try_join` and `FileSystemPath::get_type` for every possible! match. This caused a lot of tasks being created.
This PR changes the logic to only call `FileSystemPath::read_dir` for the parent directory and looking up the information from that result. This reduces the tasks to the number of directories (instead of the number of possible matching files)
