Update testbench requirement from 0.9 to 1.0

Updates the requirements on [testbench](https://github.com/HadrienG2/testbench) to permit the latest version.
- [Release notes](https://github.com/HadrienG2/testbench/releases)
- [Changelog](https://github.com/HadrienG2/testbench/blob/master/CHANGELOG.md)
- [Commits](HadrienG2/testbench@v0.9.0...v1.0.0)

---
updated-dependencies:
- dependency-name: testbench
  dependency-type: direct:production
...

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

Cargo.toml

@@ -31,7 +31,7 @@ crossbeam-utils = { version = "0.8.11", default-features = false }
 
 [dev-dependencies]
 criterion = { version = "0.5", default-features = false }
-testbench = "0.9"
+testbench = "1.0"
 
 [lib]
 bench = false