Update Rust crate clap to 3.2.20

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
clap	dependencies	patch	3.2.19 -> 3.2.20

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Release Notes

clap-rs/clap

### [`v3.2.20`](https://togithub.com/clap-rs/clap/releases/tag/v3.2.20) [Compare Source](https://togithub.com/clap-rs/clap/compare/v3.2.19...v3.2.20) #### \[3.2.20] - 2022-09-02 ##### Features - `ArgMatches::get_count` help for `ArgAction::Count` - `ArgMatches::get_flag` help for `ArgAction::SetTrue` / `ArgAction::SetFalse`

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Configuration

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