Replaced manual Rust installation with dtolnay/rust-toolchain action for better maintainability and clarity. Added necessary components like llvm-tools-preview to support code coverage generation. These changes simplify the workflow setup.
Revised the GitHub Actions workflow for code coverage by updating dependencies, using modern, maintained actions, and improving configuration clarity. Streamlined Rust installation and replaced manual steps with dedicated actions for better reliability. Adjusted Codecov settings for stricter error handling.
Signed-off-by: Harald Hoyer <harald@hoyer.xyz>