* protocols: Fix building without the "games" feature
* crate/lib: Add required features for examples
This prevents cargo from running the examples if the required features
aren't enabled.
* ci: Run if ANY Cargo.toml files are changed
* ci: Make sure to run unit tests
* ci: Separate checks for library and CLI
* ci: Add slightly better comments
* ci: Only run deeper tests for CLI or LIB when their files were changed
* ci: Improve act arguments for testing actions locally
* ci: Fix pre-commit not running tests
* ci: Only update shared cache after the initial build
* ci: Make sure that rustup downloads get cached
* tidy: Clean up file formatting
* ci: Fix issue with audit
