Bump clap from 3.0.0-rc.7 to 3.0.0-rc.8

Bumps [clap](https://github.com/clap-rs/clap) from 3.0.0-rc.7 to 3.0.0-rc.8.
- [Release notes](https://github.com/clap-rs/clap/releases)
- [Changelog](https://github.com/clap-rs/clap/blob/master/CHANGELOG.md)
- [Commits](clap-rs/clap@clap_generate-v3.0.0-rc.7...clap_generate-v3.0.0-rc.8)

---
updated-dependencies:
- dependency-name: clap
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

Cargo.lock

@@ -9,7 +9,7 @@ repository = "https://github.com/trailofbits/dylint"
 
 [dependencies]
 anyhow = "1.0.52"
-clap = { version = "3.0.0-rc.7", features = ["cargo", "derive"] }
+clap = { version = "3.0.0-rc.8", features = ["cargo", "derive"] }
 env_logger = "0.9.0"
 
 dylint = { version = "=1.0.10", path = "../dylint", features = ["dylint_driver_local", "package_options"] }