feat: exit code 0 if mirrorlist was exported

[rtkay123]

No description provided.

[codecov-commenter]

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Codecov Report

Attention: Patch coverage is 5.00000% with 38 lines in your changes missing coverage. Please review.

Project coverage is 48.8%. Comparing base (85847d4) to head (7d1e77d).

Files with missing lines	Patch %	Lines
crates/mirro-rs/src/lib.rs	0.0%	21 Missing ⚠️
crates/mirro-rs/src/main.rs	0.0%	14 Missing ⚠️
crates/mirro-rs/src/direct/mod.rs	40.0%	3 Missing ⚠️

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Additional details and impacted files

Files with missing lines	Coverage Δ
crates/archlinux/src/lib.rs	83.9% <ø> (ø)
crates/mirro-rs/src/config/mod.rs	52.9% <ø> (ø)
crates/mirro-rs/src/direct/mod.rs	67.2% <40.0%> (-0.3%)	⬇️
crates/mirro-rs/src/main.rs	0.0% <0.0%> (ø)
crates/mirro-rs/src/lib.rs	0.0% <0.0%> (ø)