Bump mypy from 1.19.1 to 1.20.2

[dependabot]

Bumps mypy from 1.19.1 to 1.20.2.

Changelog

Sourced from mypy's changelog.

Mypy 1.20.2

• Use WAL with SQLite cache and fix close (Shantanu, PR 21154)
• Adjust SQLite journal mode (Ivan Levkivskyi, PR 21217)
• Correctly aggregate narrowing information on parent expressions (Shantanu, PR 21206)
• Fix regression related to generic callables (Shantanu, PR 21208)
• Fix regression by avoiding widening types in some contexts (Shantanu, PR 21242)
• Fix slicing in non-strict optional mode (Shantanu, PR 21282)
• mypyc: Fix match statement semantics for "or" pattern (Shantanu, PR 21156)
• mypyc: Fix issue with module dunder attributes (Piotr Sawicki, PR 21275)
• Initial support for Python 3.15.0a8 (Marc Mueller, PR 21255)

Acknowledgements

Thanks to all mypy contributors who contributed to this release:

• A5rocks
• Aaron Wieczorek
• Adam Turner
• Ali Hamdan
• asce
• BobTheBuidler
• Brent Westbrook
• Brian Schubert
• bzoracler
• Chris Burroughs
• Christoph Tyralla
• Colin Watson
• Donghoon Nam
• E. M. Bray
• Emma Smith
• Ethan Sarp
• George Ogden
• getzze
• grayjk
• Gregor Riepl
• Ivan Levkivskyi
• James Hilliard
• James Le Cuirot
• Jeremy Nimmer
• Joren Hammudoglu
• Kai (Kazuya Ito)
• kaushal trivedi
• Kevin Kannammalil
• Lukas Geiger
• Łukasz Langa
• Marc Mueller
• Michael R. Crusoe
• michaelm-openai
• Neil Schemenauer
• Piotr Sawicki

... (truncated)

Commits

• 145a062 Bump version to 1.20.2
• 81cd492 Fix slicing with nonstrict optional (#21282)
• 908d344 [mypyc] Set dunder attrs when adding module to sys.modules (#21275)
• ba28610 Initial support for Python 3.15.0a8 (#21255)
• 7b0e09f Fix match statement semantics for "or" pattern (#21156)
• 92b74f2 Avoid widening types in conditional_types (#21242)
• 0dcbfaa Fix is_overlapping_types for generic callables (#21208)
• 210f518 Correctly aggregate narrowing information on parent expressions (#21206)
• c34530e Only set journal mode in coordinator (#21217)
• 79a3ec6 Use WAL with SQLite cache, fix close (#21154)
• Additional commits viewable in compare view

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.92%. Comparing base (b0601d6) to head (e412a48).
⚠️ Report is 3 commits behind head on master.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##           master   #12411   +/-   ##
=======================================
  Coverage   98.92%   98.92%           
=======================================
  Files         134      134           
  Lines       46741    46751   +10     
  Branches     2429     2430    +1     
=======================================
+ Hits        46239    46249   +10     
  Misses        373      373           
  Partials      129      129           

Flag	Coverage Δ
CI-GHA	98.98% <ø> (+<0.01%)	⬆️
OS-Linux	98.72% <ø> (-0.01%)	⬇️
OS-Windows	96.98% <ø> (+<0.01%)	⬆️
OS-macOS	97.89% <ø> (-0.01%)	⬇️
Py-3.10.11	97.39% <ø> (+<0.01%)	⬆️
Py-3.10.20	97.86% <ø> (+<0.01%)	⬆️
Py-3.11.15	98.11% <ø> (-0.01%)	⬇️
Py-3.11.9	97.65% <ø> (-0.01%)	⬇️
Py-3.12.10	97.74% <ø> (+<0.01%)	⬆️
Py-3.12.13	98.20% <ø> (-0.01%)	⬇️
Py-3.13.13	98.45% <ø> (-0.01%)	⬇️
Py-3.14.4	98.50% <ø> (-0.01%)	⬇️
Py-3.14.4t	97.51% <ø> (+<0.01%)	⬆️
Py-pypy3.11.15-7.3.21	97.35% <ø> (+<0.01%)	⬆️
VM-macos	97.89% <ø> (-0.01%)	⬇️
VM-ubuntu	98.72% <ø> (-0.01%)	⬇️
VM-windows	96.98% <ø> (+<0.01%)	⬆️
cython-coverage	38.08% <ø> (-0.01%)	⬇️

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[codspeed-hq]

Merging this PR will not alter performance

✅ 67 untouched benchmarks
⏩ 4 skipped benchmarks¹

---

_{Comparing dependabot/pip/mypy-1.20.2 (e412a48) with master (365f717)²}

Footnotes

1. 4 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. ↩

2. No successful run was found on master (a45aa29) during the generation of this report, so 365f717 was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩