Bump split from 3.4.1 to 4.0.1

Bumps [split](https://github.com/splitrb/split) from 3.4.1 to 4.0.1.
- [Release notes](https://github.com/splitrb/split/releases)
- [Changelog](https://github.com/splitrb/split/blob/main/CHANGELOG.md)
- [Commits](splitrb/split@v3.4.1...v4.0.1)

---
updated-dependencies:
- dependency-name: split
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

Gemfile

@@ -4,4 +4,4 @@ gem 'rails', '~> 6.1'
 
 gem 'listen'
 gem 'sqlite3'
-gem 'split', '~> 3.4.1', :require => 'split/dashboard'
+gem 'split', '~> 4.0.1', :require => 'split/dashboard'

Gemfile.lock

@@ -91,7 +91,7 @@ GEM
     nokogiri (1.13.6-x86_64-darwin)
       racc (~> 1.4)
     racc (1.6.0)
-    rack (2.2.3)
+    rack (2.2.3.1)
     rack-protection (2.2.0)
       rack
     rack-test (1.1.0)
@@ -126,17 +126,17 @@ GEM
     rb-fsevent (0.11.0)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
-    redis (4.1.3)
+    redis (4.6.0)
     ruby2_keywords (0.0.5)
-    simple-random (1.0.3)
+    rubystats (0.3.0)
     sinatra (2.2.0)
       mustermann (~> 1.0)
       rack (~> 2.2)
       rack-protection (= 2.2.0)
       tilt (~> 2.0)
-    split (3.4.1)
-      redis (>= 2.1)
-      simple-random (>= 0.9.3)
+    split (4.0.1)
+      redis (>= 4.2)
+      rubystats (>= 0.3.0)
       sinatra (>= 1.2.6)
     sprockets (4.0.2)
       concurrent-ruby (~> 1.0)
@@ -163,7 +163,7 @@ PLATFORMS
 DEPENDENCIES
   listen
   rails (~> 6.1)
-  split (~> 3.4.1)
+  split (~> 4.0.1)
   sqlite3
 
 BUNDLED WITH