Bump mypy from 1.20.0 to 1.20.2

[dependabot]

Bumps mypy from 1.20.0 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-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 47.61%. Comparing base (ec531fb) to head (2abd5a4).
⚠️ Report is 7 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #53   +/-   ##
=======================================
  Coverage   47.61%   47.61%           
=======================================
  Files           3        3           
  Lines          42       42           
  Branches        4        4           
=======================================
  Hits           20       20           
  Misses         22       22           

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