chore(deps): update tonic-health requirement from 0.7.1 to 0.8.0 (#241)

Updates the requirements on [tonic-health](https://github.com/hyperium/tonic) to permit the latest version.
- [Release notes](https://github.com/hyperium/tonic/releases)
- [Changelog](https://github.com/hyperium/tonic/blob/master/CHANGELOG.md)
- [Commits](hyperium/tonic@v0.7.1...v0.8.0)

---
updated-dependencies:
- dependency-name: tonic-health
  dependency-type: direct:production
...

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Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

examples/bank-accounting/Cargo.toml

@@ -19,7 +19,7 @@ sqlx = { version = "0.6.2", features = [ "runtime-tokio-rustls" , "postgres" ] }
 thiserror = "1.0.30"
 tokio = { version = "1.13.0", features = ["macros", "rt-multi-thread"] }
 tonic = { version = "0.8.1", features = ["gzip", "transport"] }
-tonic-health = "0.7.1"
+tonic-health = "0.8.0"
 tonic-reflection = "0.5.0"
 tower = "0.4.11"
 tower-http = { version = "0.3.4", features = ["trace"] }