Releasing new version of scoped-futures

[tlowerison]

Hi @weiznich, I'm planning on releasing a new patch of scoped-futures and wanted to give you a chance to review the changes since diesel-async currently does not pin the patch number on this dependency.

All contributions were made by Kijewski and included:

• adding a new feature alloc which entirely encompasses the existing std feature and allows for the crate to use no_std; this change is backwards-compatible as it keeps the std feature the same
• removal of the cfg-if dependency
• replacement of the pin-utils dependency with pin-project-lite since they achieve the same function in scoped-futures of projecting a future and pin-project-lite is actively maintained

Let me know here once you're able to review these changes and I'll release the new patch. Thanks!

[weiznich]

Thanks for the headsup. I had a look at these changes and found they look good, so 👍 from me.

Also thanks for keeping that crate up to date ❤️