vim-vint: 0.3.18 -> 0.3.19 (#43152)

Semi-automatic update generated by https://github.com/ryantm/nixpkgs-update tools.

This update was made based on information from https://repology.org/metapackage/vim-vint/versions.

Version release notes (from GitHub):
# Change Log
This is a release before merging #275. After #275 merged, we probably face the many problems, so we should publish it at the next release.

[diff](https://github.com/Kuniwak/vint/compare/aa0648cf1272c47ec808fc92737849f082fb53e9...6422c268c190dee6657cc57f57ee19268bd04849)

## New features
- Initial support for stdin (#240)

## Bugfixes
- Disable ProhibitImplicitScopeVariable (#273)
- Suppress warnings caused by map([], ' "x" ') (#259)
- Fix linting autocmd (#260)
- Fix acceptance tests (#262)

## Documentation
- Link to default config (#270)
- Fix a broken code block for example (#276)

## Performance Improvements
- Optimize ProhibitUnusedVariable (#269)
- Optimize get_asset_path (#268)
- Optimize ConfigProjectSource (#267)

These checks were done:

- built on NixOS
- /nix/store/yaywc2r3anf8r8pkw31si2y5phly68r5-vim-vint-0.3.19/bin/.vint-wrapped passed the binary check.
- /nix/store/yaywc2r3anf8r8pkw31si2y5phly68r5-vim-vint-0.3.19/bin/vint passed the binary check.
- 2 of 2 passed binary check by having a zero exit code.
- 2 of 2 passed binary check by having the new version present in output.
- found 0.3.19 with grep in /nix/store/yaywc2r3anf8r8pkw31si2y5phly68r5-vim-vint-0.3.19
- directory tree listing: https://gist.github.com/9f3ec9fa4587a10f4c05cb1d043d96c6
- du listing: https://gist.github.com/bb1c02d3f65c3b7acb80f77938706b7c