Update criterion requirement from 0.2 to 0.3 in /micro_benchmarks

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]

micro_benchmarks/Cargo.toml

@@ -8,7 +8,7 @@ edition = "2018"
 [dev-dependencies]
 packed_simd = { path = ".." }
 paste = "0.1.3"
-criterion = "0.2"
+criterion = "0.3"
 
 [profile.bench]
 opt-level = 3