chore(deps): update rust crate thiserror to v2.0.21

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
thiserror	dependencies	patch	2.0.20 → 2.0.21

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Release Notes

dtolnay/thiserror (thiserror)

v2.0.21

Compare Source

• Fix parsing of generic unit variants in display expressions (#​459)

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📊 iai-callgrind Benchmark Results

➡️ 20 Unchanged (within ±0.1%)

Click to expand

Benchmark	Instructions
iai_algos::corner_to_corner_astar	167,075
iai_algos::corner_to_corner_bfs	3,097,176
iai_algos::corner_to_corner_bfs_bidirectional	3,066,594
iai_algos::corner_to_corner_dfs	2,956,482
iai_algos::corner_to_corner_dijkstra	3,755,146
iai_algos::corner_to_corner_fringe	124,497
iai_algos::corner_to_corner_idastar	157,513
iai_algos::corner_to_corner_iddfs	3,796,528
iai_algos::no_path_astar	4,015,347
iai_algos::no_path_bfs	3,004,301
iai_algos::no_path_bfs_bidirectional	2,964,634
iai_algos::no_path_dfs	2,848,686
iai_algos::no_path_dijkstra	3,729,474
iai_algos::no_path_fringe	3,008,422
iai_edmondskarp::wikipedia_example_dense	22,370
iai_edmondskarp::wikipedia_example_sparse	46,083
iai_kuhn_munkres::kuhn_munkres_size_128	4,211,200
iai_kuhn_munkres::kuhn_munkres_size_32	239,050
iai_kuhn_munkres::kuhn_munkres_size_64	1,199,842
iai_separate_components::bench_separate_components	16,465,374

✅ All benchmarks unchanged

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iai-callgrind measures instructions executed, which is deterministic and not affected by system load.