Merge branch 'sh-bump-sidekiq' into 'master'

Bump Sidekiq and other related gems

See merge request gitlab-org/gitlab-ce!22956

Gemfile.lock

@@ -598,7 +598,7 @@ GEM
       get_process_mem (~> 0.2)
       puma (>= 2.7, < 4)
     pyu-ruby-sasl (0.0.3.3)
-    rack (1.6.10)
+    rack (1.6.11)
     rack-accept (0.4.5)
       rack (>= 0.4)
     rack-attack (4.4.1)
@@ -610,7 +610,7 @@ GEM
       httpclient (>= 2.4)
       multi_json (>= 1.3.6)
       rack (>= 1.1)
-    rack-protection (2.0.3)
+    rack-protection (2.0.4)
       rack
     rack-proxy (0.6.0)
       rack
@@ -804,7 +804,7 @@ GEM
       rack
     shoulda-matchers (3.1.2)
       activesupport (>= 4.0.0)
-    sidekiq (5.2.1)
+    sidekiq (5.2.3)
       connection_pool (~> 2.2, >= 2.2.2)
       rack-protection (>= 1.5.0)
       redis (>= 3.3.5, < 5)

Gemfile.rails5.lock

@@ -614,7 +614,7 @@ GEM
       httpclient (>= 2.4)
       multi_json (>= 1.3.6)
       rack (>= 1.1)
-    rack-protection (2.0.3)
+    rack-protection (2.0.4)
       rack
     rack-proxy (0.6.0)
       rack
@@ -812,7 +812,7 @@ GEM
       rack
     shoulda-matchers (3.1.2)
       activesupport (>= 4.0.0)
-    sidekiq (5.2.1)
+    sidekiq (5.2.3)
       connection_pool (~> 2.2, >= 2.2.2)
       rack-protection (>= 1.5.0)
       redis (>= 3.3.5, < 5)