New version: OhMyThreads v0.4.0

[JuliaRegistrator]

• Registering package: OhMyThreads
• Repository: https://github.com/JuliaFolds2/OhMyThreads.jl
• Created by: @MasonProtter
• Version: v0.4.0
• Commit: ce03db29b57fb93c03531fff3691af3fd52ad92b
• Reviewed by: @MasonProtter
• Reference: JuliaFolds2/OhMyThreads.jl@ce03db2#commitcomment-138437718
• Description: Simple multithreading in julia
• Release notes:

- ![BREAKING][badge-breaking] Instead of taking keyword arguments `schedule`, `nchunks`, `split` directly, we now use `Scheduler` structs to specify scheduling options ([#22](https://github.com/JuliaFolds2/OhMyThreads.jl/issues/22)). The latter can be provided to all API functions via the new `scheduler` keyword argument.
- ![BREAKING][badge-breaking] The default scheduler (`DynamicScheduler`) now, by default, creates `2*nthreads()` tasks to provide load-balancing by default. The old behavior can be restored with `DynamicScheduler(; nchunks=nthreads())`.
- ![Enhancement][badge-enhancement] We reject unsupported keyword arguments early and give a more helpful error message.

[badge-breaking]: https://img.shields.io/badge/BREAKING-red.svg
[badge-deprecation]: https://img.shields.io/badge/Deprecation-orange.svg
[badge-feature]: https://img.shields.io/badge/Feature-green.svg
[badge-enhancement]: https://img.shields.io/badge/Enhancement-blue.svg
[badge-bugfix]: https://img.shields.io/badge/Bugfix-purple.svg
[badge-fix]: https://img.shields.io/badge/Fix-purple.svg
[badge-info]: https://img.shields.io/badge/Info-gray.svg

[MasonProtter]

block, sorry I should check something before this goes live

Edit: [noblock]

[github-actions]

Your new version pull request met all of the guidelines for auto-merging and is scheduled to be merged in the next round.

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