Implement nominate_cycle_breakers method

[seddonym]

Adds nominate_cycle_breakers method.

[codspeed-hq]

CodSpeed Performance Report

Merging #258 will degrade performances by 12.53%

_{Comparing cycle-breakers-rust (caa957f) with main (b5faf4e)}

Summary

❌ 1 (👁 1) regression
✅ 22 untouched
🆕 3 new
⏩ 23 skipped¹

Benchmarks breakdown

	Mode	Benchmark	BASE	HEAD	Change
👁	WallTime	test_get_import_details	134.8 µs	154.1 µs	-12.53%
🆕	WallTime	test_nominate_cycle_breakers_django	N/A	7.8 ms	N/A
🆕	WallTime	test_nominate_cycle_breakers_large_graph_root	N/A	411.6 ms	N/A
🆕	WallTime	test_nominate_cycle_breakers_large_graph_subpackage	N/A	181.7 ms	N/A

Footnotes

1. 23 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩