build(deps): bump i18n from 0.7.0 to 0.9.5

Bumps [i18n](https://github.com/ruby-i18n/i18n) from 0.7.0 to 0.9.5.
- [Release notes](https://github.com/ruby-i18n/i18n/releases)
- [Changelog](https://github.com/ruby-i18n/i18n/blob/master/CHANGELOG.md)
- [Commits](ruby-i18n/i18n@v0.7.0...v0.9.5)

---
updated-dependencies:
- dependency-name: i18n
  dependency-type: indirect
...

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

Author: dependabot[bot]

Gemfile.lock

@@ -14,6 +14,7 @@ GEM
       execjs
     coffee-script-source (1.12.2)
     colorator (1.1.0)
+    concurrent-ruby (1.1.10)
     ethon (0.14.0)
       ffi (>= 1.15.0)
     execjs (2.7.0)
@@ -89,7 +90,8 @@ GEM
     html-pipeline (2.5.0)
       activesupport (>= 2)
       nokogiri (>= 1.4)
-    i18n (0.7.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     jekyll (3.3.1)
       addressable (~> 2.4)
       colorator (~> 1.0)