Bump i18n from 1.5.2 to 1.5.3 in /Library/Homebrew/vendor

Bumps [i18n](https://github.com/svenfuchs/i18n) from 1.5.2 to 1.5.3.
- [Release notes](https://github.com/svenfuchs/i18n/releases)
- [Changelog](https://github.com/ruby-i18n/i18n/blob/master/CHANGELOG.md)
- [Commits](https://github.com/svenfuchs/i18n/compare/v1.5.2...v1.5.3

)

Signed-off-by: dependabot[bot] <support@dependabot.com>

Library/Homebrew/vendor/Gemfile.lock

@@ -9,7 +9,7 @@ GEM
     ast (2.4.0)
     backports (3.11.4)
     concurrent-ruby (1.1.4)
-    i18n (1.5.2)
+    i18n (1.5.3)
       concurrent-ruby (~> 1.0)
     jaro_winkler (1.5.2)
     minitest (5.11.3)