build(deps): bump num-traits from 0.2.15 to 0.2.16

Bumps [num-traits](https://github.com/rust-num/num-traits) from 0.2.15 to 0.2.16.
- [Changelog](https://github.com/rust-num/num-traits/blob/master/RELEASES.md)
- [Commits](rust-num/num-traits@num-traits-0.2.15...num-traits-0.2.16)

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

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

Cargo.toml

@@ -14,7 +14,7 @@ rust-version = "1.65"
 
 [dependencies]
 num-bigint = { version = "0.8.2", features = ["i128", "prime", "zeroize"], default-features = false, package = "num-bigint-dig" }
-num-traits = { version= "0.2.9", default-features = false, features = ["libm"] }
+num-traits = { version= "0.2.16", default-features = false, features = ["libm"] }
 num-integer = { version = "0.1.39", default-features = false }
 num-iter = { version = "0.1.37", default-features = false }
 rand_core = { version = "0.6.4", default-features = false }