Hydrusvideodeduplicator

- Pin [pyav](https://github.com/PyAV-Org/PyAV) to version <12
- I was having errors during testing with v12. It will be bumped to v12 if/when the problems are resolved.

- Internal refactor

**Full Changelog**: https://github.com/hydrusvideodeduplicator/hydrus-video-deduplicator/compare/v0.4.2...v0.4.3

- Change [av](https://github.com/PyAV-Org/PyAV) to [pyav](https://github.com/WyattBlue/pyav) which is a new fork that should support Python 3.12 and FFmpeg 6.0.

**Full Changelog**: https://github.com/hydrusvideodeduplicator/hydrus-video-deduplicator/compare/v0.4.1...v0.4.2

Bugfix:
- Fix ValueError during serialization caused by the frame number

Features:
- `--query` now uses the search cache by default
- It no longer only searches against other videos from the `--query`
- There is now no way to compare only --query against each other
- Can now be used to batch hashes and searches of the database

Bugs Fixed:
- Fix `--file-service-key` not functioning
- Fix last element in DB not having a cache value

Bugs Fixed:
- Database batches were always 1 for clearing trashed files and updating the search cache
- Potentially a minor performance improvement for large databases

Features:
- Add parallelized hashing
- You can set the number of CPUs with `--job-count`. Default is all CPUs but one (-2).
- This may use a lot of memory if you're hashing large video files. The entire video is loaded into memory before hashing. If performance degrades then try lowering the number of jobs.