[Security] Bump chartkick from 3.3.1 to 3.4.0

dependabot-preview[bot] · web-flow · commit a1a3bdc74a93 · 2020-08-10T16:55:39.000Z
Bumps [chartkick](https://github.com/ankane/chartkick) from 3.3.1 to 3.4.0. **This update includes a security fix.** - [Release notes](https://github.com/ankane/chartkick/releases) - [Changelog](https://github.com/ankane/chartkick/blob/master/CHANGELOG.md) - [Commits](ankane/chartkick@v3.3.1...v3.4.0) Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
diff --git a/Gemfile.lock b/Gemfile.lock
@@ -105,7 +105,7 @@ GEM
       rack-test (>= 0.6.3)
       regexp_parser (~> 1.5)
       xpath (~> 3.2)
-    chartkick (3.3.1)
+    chartkick (3.4.0)
     childprocess (3.0.0)
     codez (0.1.1)
     coffee-rails (4.2.2)
