Bump sidekiq-cron

Gemfile

@@ -38,7 +38,7 @@ gem "sinatra", "1.4.7"
 
 # Scheduled processing
 
-gem "sidekiq-cron", "0.4.2"
+gem "sidekiq-cron", "0.4.4"
 
 # Compression
 

Gemfile.lock

@@ -762,7 +762,7 @@ GEM
     ruby-progressbar (1.8.1)
     ruby_dep (1.3.1)
     rubyzip (1.2.0)
-    rufus-scheduler (3.2.1)
+    rufus-scheduler (3.2.2)
     rugged (0.24.0)
     safe_yaml (1.0.4)
     sass (3.4.22)
@@ -789,10 +789,10 @@ GEM
       connection_pool (~> 2.2, >= 2.2.0)
       rack-protection (~> 1.5)
       redis (~> 3.2, >= 3.2.1)
-    sidekiq-cron (0.4.2)
+    sidekiq-cron (0.4.4)
       redis-namespace (>= 1.5.2)
       rufus-scheduler (>= 2.0.24)
-      sidekiq (>= 4.0.0)
+      sidekiq (>= 4.2.1)
     sigar (0.7.3)
     simple_captcha2 (0.4.0)
       rails (>= 4.1)
@@ -1030,7 +1030,7 @@ DEPENDENCIES
   secure_headers (= 3.4.1)
   shoulda-matchers (= 3.1.1)
   sidekiq (= 4.2.2)
-  sidekiq-cron (= 0.4.2)
+  sidekiq-cron (= 0.4.4)
   simple_captcha2 (= 0.4.0)
   simplecov (= 0.12.0)
   sinatra (= 1.4.7)