Bump clap from 3.0.14 to 3.1.1 (#4968)

* Bump clap from 3.0.14 to 3.1.1

Bumps [clap](https://github.com/clap-rs/clap) from 3.0.14 to 3.1.1.
- [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/v3.0.14...v3.1.1)

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

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

* avoid deprecated AppSettings::Hidden

* avoid another deprecated instance

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Bernhard Schuster <bernhard@ahoi.io>

polkadot/cli/src/cli.rs

@@ -16,7 +16,7 @@
 
 //! Polkadot CLI library.
 
-use clap::{AppSettings, Parser};
+use clap::Parser;
 
 #[allow(missing_docs)]
 #[derive(Debug, Parser)]
@@ -43,11 +43,11 @@ pub enum Subcommand {
 	Revert(sc_cli::RevertCmd),
 
 	#[allow(missing_docs)]
-	#[clap(name = "prepare-worker", setting = AppSettings::Hidden)]
+	#[clap(name = "prepare-worker", hide = true)]
 	PvfPrepareWorker(ValidationWorkerCommand),
 
 	#[allow(missing_docs)]
-	#[clap(name = "execute-worker", setting = AppSettings::Hidden)]
+	#[clap(name = "execute-worker", hide = true)]
 	PvfExecuteWorker(ValidationWorkerCommand),
 
 	/// The custom benchmark subcommand benchmarking runtime pallets.