Update futures-lite requirement from 1.12.0 to 2.0.0

Updates the requirements on [futures-lite](https://github.com/smol-rs/futures-lite) to permit the latest version.
- [Release notes](https://github.com/smol-rs/futures-lite/releases)
- [Changelog](https://github.com/smol-rs/futures-lite/blob/master/CHANGELOG.md)
- [Commits](smol-rs/futures-lite@v1.12.0...v2.0.0)

---
updated-dependencies:
- dependency-name: futures-lite
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Cargo.toml

@@ -27,7 +27,7 @@ atomic-waker = "1"
 easy-parallel = "3"
 flaky_test = "0.1"
 flume = { version = "0.11", default-features = false }
-futures-lite = "1.12.0"
+futures-lite = "2.0.0"
 once_cell = "1"
 pin-project-lite = "0.2.10"
 smol = "1"