build(deps): bump futures from 0.3.30 to 0.3.31

Bumps [futures](https://github.com/rust-lang/futures-rs) from 0.3.30 to 0.3.31.
- [Release notes](https://github.com/rust-lang/futures-rs/releases)
- [Changelog](https://github.com/rust-lang/futures-rs/blob/master/CHANGELOG.md)
- [Commits](rust-lang/futures-rs@0.3.30...0.3.31)

---
updated-dependencies:
- dependency-name: futures
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Cargo.toml

@@ -13,7 +13,7 @@ domain = { features = [
     "unstable-zonetree",
     "tsig",
 ], git = "https://github.com/thibault-cne/domain", branch = "main" }
-futures = "0.3.30"
+futures = "0.3.31"
 log = { version = "0.4.22", features = ["std"] }
 notify = { version = "6.1.1" }
 ring = { version = "0.17.8", features = ["std"] }