build: bump tzinfo from 1.2.5 to 1.2.6 in /docs
build: bump tzinfo from 1.2.5 to 1.2.6 in /docs

Bumps [tzinfo](https://github.com/tzinfo/tzinfo) from 1.2.5 to 1.2.6.
- [Release notes](https://github.com/tzinfo/tzinfo/releases)
- [Changelog](https://github.com/tzinfo/tzinfo/blob/master/CHANGES.md)
- [Commits](https://github.com/tzinfo/tzinfo/compare/v1.2.5...v1.2.6)

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