build: bump ffi from 1.10.0 to 1.11.0 in /docs
build: bump ffi from 1.10.0 to 1.11.0 in /docs

Bumps [ffi](https://github.com/ffi/ffi) from 1.10.0 to 1.11.0.
- [Release notes](https://github.com/ffi/ffi/releases)
- [Changelog](https://github.com/ffi/ffi/blob/master/CHANGELOG.md)
- [Commits](https://github.com/ffi/ffi/compare/1.10.0...1.11.0)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
konqui/brew,mahori/brew,konqui/brew,reitermarkus/brew,MikeMcQuaid/brew,JCount/brew,nandub/brew,sjackman/homebrew,JCount/brew,Homebrew/brew,mahori/brew,vitorgalvao/brew,mahori/brew,nandub/brew,claui/brew,MikeMcQuaid/brew,claui/brew,EricFromCanada/brew,vitorgalvao/brew,reitermarkus/brew,konqui/brew,JCount/brew,EricFromCanada/brew,konqui/brew,sjackman/homebrew,nandub/brew,nandub/brew,claui/brew,JCount/brew,EricFromCanada/brew,reitermarkus/brew,MikeMcQuaid/brew,claui/brew,Homebrew/brew,MikeMcQuaid/brew,Homebrew/brew,vitorgalvao/brew,mahori/brew,EricFromCanada/brew,sjackman/homebrew,Homebrew/brew,sjackman/homebrew,reitermarkus/brew,vitorgalvao/brew