Apply code formatting and lint checks to `raftify-py` and `raftify-cli` packages

Currently, the code formatting and lint checks in the CI and pre-commit hooks are only applied to the raftify crate itself.
Let's expand this to include the `raftify-py` and `raftify-cli` packages as well.
To do so, we first need to run the `cargo clippy` command on these packages to fix any code that breaks the linting rules.