v0.21.2

[kayjan]

Description

Version bump

Testing

Additional notes

Checklist

I have read through the contributing guidelines and ensured that

• I have added a descriptive title for this pull request.
• I have followed the convention and standards, and my code is checked for style and correctness.
• I have added test cases, and unit tests pass with 100% code coverage.
• I have updated the documentation and code docstrings.

Checklist (for reviewer)

• I have added label (breaking / enhancement / bug / documentation) to this pull request, if applicable.
• I will ensure this change is captured in the CHANGELOG.md file.

[github-actions]

Package	Line Rate	Branch Rate	Complexity	Health
bigtree	100%	100%	0	✔
bigtree.binarytree	100%	100%	0	✔
bigtree.dag	100%	100%	0	✔
bigtree.node	100%	100%	0	✔
bigtree.tree	100%	100%	0	✔
bigtree.utils	100%	100%	0	✔
Summary	100% (2349 / 2349)	100% (990 / 990)	0	✔

[github-actions]

Benchmark

Benchmark suite	Current: 9212d18	Previous: 0617054	Ratio
tests/node/test_node_benchmark.py::test_node_benchmark_width_1_depth_10	15604.79910000383 iter/sec (stddev: 0.000014179400151386441)	15269.436847960807 iter/sec (stddev: 0.000013898183788120585)	0.98
tests/node/test_node_benchmark.py::test_node_benchmark_width_1_depth_100	686.7245163398171 iter/sec (stddev: 0.000018926561526513162)	690.3326744223741 iter/sec (stddev: 0.00008663238937667257)	1.01
tests/node/test_node_benchmark.py::test_node_benchmark_width_1_depth_1000	12.44704811796975 iter/sec (stddev: 0.0022907399463513146)	12.26686176014444 iter/sec (stddev: 0.002834360457752651)	0.99
tests/node/test_node_benchmark.py::test_node_benchmark_width_2_depth_10	69.89681981736729 iter/sec (stddev: 0.003158544663158721)	69.83939300181373 iter/sec (stddev: 0.0033702349679103722)	1.00
tests/node/test_node_benchmark.py::test_node_benchmark_width_1_depth_10_no_assertions	22920.009168537294 iter/sec (stddev: 0.0000017895458401705836)	22955.15480926759 iter/sec (stddev: 0.000001920643441718048)	1.00
tests/node/test_node_benchmark.py::test_node_benchmark_width_1_depth_100_no_assertions	1581.3903251621825 iter/sec (stddev: 0.00005363496859339035)	1690.504327304463 iter/sec (stddev: 0.00005681864616113072)	1.07
tests/node/test_node_benchmark.py::test_node_benchmark_width_1_depth_1000_no_assertions	112.77172360900575 iter/sec (stddev: 0.003787331519442307)	113.96716823560449 iter/sec (stddev: 0.003536487015161119)	1.01
tests/node/test_node_benchmark.py::test_node_benchmark_width_2_depth_10_no_assertions	97.36598810719467 iter/sec (stddev: 0.0028225280157126655)	93.77279001142509 iter/sec (stddev: 0.0034457306376171498)	0.96

This comment was automatically generated by workflow using github-action-benchmark.

[kayjan]

#303