devel/lazygit: update to 0.40.2

v0.40.2
What's Changed
Fixes �沐ｧ
- Fix seg-fault when opening submodule in nested folder
  by @jesseduffield in #2903

v0.40.1
What's Changed
Fixes �沐ｧ
- update worktree icons for NerdFont V3 by @Saafo in #2895
- Fix opening lazygit in a bare repo with specified worktree
  by @jesseduffield in #2902

Maintenance 笞呻ｸ�
- Import stefanhaller's tcell fork for real rather than just replacing it
  by @stefanhaller in #2888
- Don't run the check-required-label check on master by @stefanhaller in #2896
- Use nerdfont version 3 in demos by @jesseduffield in #2901

Other Changes
- Fix README.md typo backkground -> background by @mattiasJohnson in #2884

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