Update criterion requirement from ^0.2 to ^0.3 in /examples

Updates the requirements on [criterion](https://github.com/bheisler/criterion.rs) to permit the latest version.
- [Release notes](https://github.com/bheisler/criterion.rs/releases)
- [Changelog](https://github.com/bheisler/criterion.rs/blob/master/CHANGELOG.md)
- [Commits](bheisler/criterion.rs@0.2.0...0.3.0)

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

Author: dependabot-preview[bot]

examples/aobench/Cargo.toml

@@ -27,7 +27,7 @@ ispc = { version = "^1.0.4", optional = true }
 ispc = { version = "^1.0.4", optional = true }
 
 [dev-dependencies]
-criterion = { version = '^0.2', features=['real_blackbox'] }
+criterion = { version = '^0.3', features=['real_blackbox'] }
 
 [features]
 default = [ "256bit" ]