build: bump tins from 1.20.2 to 1.20.3 in /Library/Homebrew

Bumps [tins](https://github.com/flori/tins) from 1.20.2 to 1.20.3.
- [Release notes](https://github.com/flori/tins/releases)
- [Commits](https://github.com/flori/tins/compare/v1.20.2...v1.20.3)