Merge branch 'sh-update-redis' into 'master'

Update Redis gem from 3.1.5 -> 4.1.2

See merge request gitlab-org/gitlab-monitor!99

Gemfile.lock

@@ -5,7 +5,7 @@ PATH
       connection_pool (~> 2.2.1)
       pg (~> 1.1)
       quantile (~> 0.2.0)
-      redis (~> 3.2)
+      redis (~> 4.1.2)
       redis-namespace (~> 1.6.0)
       sidekiq (~> 5.2.1)
       sinatra (~> 2.0.4)
@@ -26,7 +26,7 @@ GEM
     rack-protection (2.0.5)
       rack
     rainbow (2.1.0)
-    redis (3.3.5)
+    redis (4.1.2)
     redis-namespace (1.6.0)
       redis (>= 3.0.4)
     rspec (3.7.0)

gitlab-monitor.gemspec

@@ -24,7 +24,7 @@ Gem::Specification.new do |s|
   s.add_runtime_dependency "sinatra", "~> 2.0.4"
   s.add_runtime_dependency "quantile", "~> 0.2.0"
   s.add_runtime_dependency "sidekiq", "~> 5.2.1"
-  s.add_runtime_dependency "redis", "~> 3.2"
+  s.add_runtime_dependency "redis", "~> 4.1.2"
   s.add_runtime_dependency "redis-namespace", "~> 1.6.0"
   s.add_runtime_dependency "connection_pool", "~> 2.2.1"