build(deps): update criterion requirement from 0.4.0 to 0.8.1 (#300)

Author: dependabot[bot]

Cargo.toml

@@ -132,7 +132,7 @@ redox_syscall = "0.5"
 
 [dev-dependencies]
 colorous = "1.0.12"
-criterion = { version = "0.4.0", default-features = false, features = [
+criterion = { version = "0.8.1", default-features = false, features = [
     "cargo_bench_support",
 ] }
 web-time = "1.0.0"