Bump split from 3.3.1 to 3.3.2

Bumps [split](https://github.com/splitrb/split) from 3.3.1 to 3.3.2.
- [Release notes](https://github.com/splitrb/split/releases)
- [Changelog](https://github.com/splitrb/split/blob/master/CHANGELOG.md)
- [Commits](splitrb/split@v3.3.1...v3.3.2)

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

Author: dependabot-support

Gemfile.lock

@@ -2,7 +2,7 @@ GEM
   remote: http://rubygems.org/
   specs:
     mustermann (1.0.3)
-    rack (2.0.6)
+    rack (2.0.7)
     rack-protection (2.0.5)
       rack
     redis (4.1.0)
@@ -12,7 +12,7 @@ GEM
       rack (~> 2.0)
       rack-protection (= 2.0.5)
       tilt (~> 2.0)
-    split (3.3.1)
+    split (3.3.2)
       redis (>= 2.1)
       simple-random (>= 0.9.3)
       sinatra (>= 1.2.6)