build(deps): bump async-trait from 0.1.38 to 0.1.40

Bumps [async-trait](https://github.com/dtolnay/async-trait) from 0.1.38 to 0.1.40.
- [Release notes](https://github.com/dtolnay/async-trait/releases)
- [Commits](https://github.com/dtolnay/async-trait/compare/0.1.38...0.1.40)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Cargo.lock

@@ -38,9 +38,9 @@ checksum = "4d25d88fd6b8041580a654f9d0c581a047baee2b3efee13275f2fc392fc75034"
 
 [[package]]
 name = "async-trait"
-version = "0.1.38"
+version = "0.1.40"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6e1a4a2f97ce50c9d0282c1468816208588441492b40d813b2e0419c22c05e7f"
+checksum = "687c230d85c0a52504709705fc8a53e4a692b83a2184f03dae73e38e1e93a783"
 dependencies = [
  "proc-macro2",
  "quote",