fix sigint handling with newer rust versions

[Mic92]

bors merge

[bors[bot]]

Configuration problem: bors.toml: not found

[Mic92]

bors merge

[bors[bot]]

Canceled.

[Mic92]

bors merge

[bors[bot]]

Canceled.

[Mic92]

bors merge

[bors[bot]]

Build succeeded!

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• Build (x86_64-unknown-linux-gnu, 1.69.0)
• Cargo Deny (crate metadata checks)
• Linting (fmt + clippy) (1.69.0, x86_64-unknown-linux-gnu)