Add py.typed file and fix mypy, improve pre-commit configuration

[pavelzw]

No description provided.

[github-actions]

(benchmark 9187445539 / attempt 1)
Base results / Our results / Change

Model	Size	Dump Time	Load Time
sklearn rf 20M	23.4 MiB / 3.0 MiB / 7.67 x	0.01 s / 0.03 s / 2.27 x	0.02 s / 0.06 s / 2.70 x
sklearn rf 20M lzma	6.5 MiB / 2.0 MiB / 3.21 x	10.16 s / 0.77 s / 0.08 x	0.41 s / 0.15 s / 0.37 x
sklearn rf 200M	238.8 MiB / 30.8 MiB / 7.75 x	0.15 s / 0.22 s / 1.51 x	0.21 s / 0.39 s / 1.81 x
sklearn rf 200M lzma	48.8 MiB / 14.8 MiB / 3.29 x	74.39 s / 14.55 s / 0.20 x	3.18 s / 1.15 s / 0.36 x
sklearn rf 1G	1302.2 MiB / 168.0 MiB / 7.75 x	0.81 s / 1.16 s / 1.42 x	1.23 s / 1.92 s / 1.56 x
sklearn rf 1G lzma	262.4 MiB / 99.1 MiB / 2.65 x	376.67 s / 83.09 s / 0.22 x	16.39 s / 6.86 s / 0.42 x
sklearn gb 2M	2.5 MiB / 1.1 MiB / 2.16 x	0.06 s / 0.23 s / 3.60 x	0.03 s / 0.26 s / 8.41 x
sklearn gb 2M lzma	0.6 MiB / 0.2 MiB / 3.76 x	0.82 s / 0.41 s / 0.51 x	0.07 s / 0.24 s / 3.37 x
lgbm gbdt 2M	2.6 MiB / 1.0 MiB / 2.78 x	0.05 s / 0.18 s / 3.88 x	0.01 s / 0.09 s / 10.19 x
lgbm gbdt 2M lzma	0.9 MiB / 0.5 MiB / 1.90 x	1.16 s / 0.40 s / 0.34 x	0.06 s / 0.11 s / 2.03 x
lgbm gbdt 5M	5.3 MiB / 1.9 MiB / 2.81 x	0.09 s / 0.36 s / 3.88 x	0.02 s / 0.18 s / 10.59 x
lgbm gbdt 5M lzma	1.7 MiB / 0.8 MiB / 1.96 x	2.47 s / 0.79 s / 0.32 x	0.11 s / 0.22 s / 2.12 x
lgbm gbdt 20M	22.7 MiB / 7.6 MiB / 3.00 x	0.39 s / 1.48 s / 3.78 x	0.07 s / 0.73 s / 10.16 x
lgbm gbdt 20M lzma	6.3 MiB / 3.0 MiB / 2.09 x	15.18 s / 3.58 s / 0.24 x	0.41 s / 0.90 s / 2.17 x
lgbm gbdt 100M	101.1 MiB / 33.0 MiB / 3.06 x	1.78 s / 6.61 s / 3.71 x	0.36 s / 14.19 s / 39.56 x
lgbm gbdt 100M lzma	25.6 MiB / 10.6 MiB / 2.41 x	70.98 s / 18.31 s / 0.26 x	1.67 s / 3.82 s / 2.28 x
lgbm rf 10M	10.9 MiB / 3.2 MiB / 3.46 x	0.17 s / 0.42 s / 2.45 x	0.04 s / 0.27 s / 6.61 x
lgbm rf 10M lzma	0.7 MiB / 0.4 MiB / 1.86 x	1.42 s / 0.65 s / 0.46 x	0.08 s / 0.30 s / 3.67 x