Bump clap from 2.34.0 to 3.0.0 (#689)

* Bump clap from 2.34.0 to 3.0.0

Bumps [clap](https://github.com/clap-rs/clap) from 2.34.0 to 3.0.0.
- [Release notes](https://github.com/clap-rs/clap/releases)
- [Changelog](https://github.com/clap-rs/clap/blob/master/CHANGELOG.md)
- [Commits](https://github.com/clap-rs/clap/compare/v2.34.0...clap_complete-v3.0.0)

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

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

* Adapt to clap v3 changes

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Henrik Friedrichsen <henrik@affekt.org>

Cargo.toml

@@ -14,7 +14,7 @@ edition = "2021"
 maintenance = { status = "actively-developed" }
 
 [dependencies]
-clap = "2.33.0"
+clap = "3.0.0"
 chrono = "0.4"
 reqwest = { version = "0.11", features = ["blocking", "json"] }
 crossbeam-channel = "0.5"