Update criterion requirement from 0.6 to 0.8

Updates the requirements on [criterion](https://github.com/criterion-rs/criterion.rs) to permit the latest version.
- [Release notes](https://github.com/criterion-rs/criterion.rs/releases)
- [Changelog](https://github.com/criterion-rs/criterion.rs/blob/master/CHANGELOG.md)
- [Commits](criterion-rs/criterion.rs@0.6.0...criterion-v0.8.1)

---
updated-dependencies:
- dependency-name: criterion
  dependency-version: 0.8.1
  dependency-type: direct:production
...

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

Author: dependabot[bot]

Cargo.toml

@@ -42,7 +42,7 @@ ouroboros = "0.18.3"
 serde_derive = "1.0"
 serde_json = { version = "1.0", default-features = false }
 tempfile = "3.2"
-criterion = "0.6"
+criterion = "0.8"
 rand = "0.8"
 uuid = { version = "1.1", features = ["serde"] }
 chrono = { version = "0.4", features = ["serde"] }