chore(main): release 0.5.1

[github-actions[bot]]

:robot: I have created a release beep boop

0.5.1 (2024-01-26)

Bug Fixes

• check int return value of vim.fn.has (#92) (0338960)
• handle absolute paths on windows (#90) (d1fff3c)
• lint: remove unused initializer for is_absolute (1153797)

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[github-actions[bot]]

:robot: Release is at https://github.com/willothy/flatten.nvim/releases/tag/v0.5.1 :sunflower: