Replaces only the cargo_deny.sh script for now. Can be expanded over
time to replace the other shell and python scripts, so only Rust is
needed to work with the repository.
Closes <https://github.com/emilk/egui/issues/2887>
Closes <https://github.com/emilk/egui/issues/4373>
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Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
YgorSouza