cargo: bump the patch group with 4 updates (#2758)

Bumps the patch group with 4 updates:
[clap](https://github.com/clap-rs/clap),
[mdbook](https://github.com/rust-lang/mdBook),
[googletest](https://github.com/google/googletest-rust) and
[reqwest](https://github.com/seanmonstar/reqwest).

Author: dependabot[bot]