embassy-executor 0.4

[jessebraham]

Not really sure what the full release process is, but this is at least working with esp-hal. If you would like any further changes made please let me know and I'm happy to make them.

[lulf]

LGTM just minor comment on the changelog

[Dirbaio]

portable-atomic is still needed in 1.74 and 1.75, we shouldn't remove it yet. see #2242

Could you add this to changelog too? sorry I forgot

- Added an arena allocator for tasks, allowing using the `main` and `task` macros on Rust 1.75 stable. (it is only used if the `nightly` feature is not enabled. When `nightly` is enabled, `type_alias_impl_trait` is used to statically allocate tasks, as before).

[jessebraham]

portable-atomic is still needed in 1.74 and 1.75, we shouldn't remove it yet. see #2242

Ahh my bad, wasn't aware of that issue and was just blindly following the comment in the manifest 😁

[jessebraham]

Sorry, didn't notice that CI was red yesterday. Have updated all references to embassy-executor@0.3.x, so hopefully should be good to go here.