Upgrade gems.

Gemfile.lock

@@ -10,35 +10,36 @@ GEM
   specs:
     addressable (2.7.0)
       public_suffix (>= 2.0.2, < 5.0)
-    airbrake (11.0.0)
-      airbrake-ruby (~> 5.0)
-    airbrake-ruby (5.0.2)
+    airbrake (11.0.1)
+      airbrake-ruby (~> 5.1)
+    airbrake-ruby (5.2.0)
       rbtree3 (~> 0.5)
     coderay (1.1.3)
     concurrent-ruby (1.1.7)
     crass (1.0.6)
     dotenv (2.7.6)
-    feedjira (3.1.1)
+    feedjira (3.1.2)
       loofah (>= 2.3.1)
       sax-machine (>= 1.0)
     github-release-party (0.3.5)
       rake (>= 12)
     heroku-env (0.1.4)
     io-console (0.5.6)
-    irb (1.2.6)
+    irb (1.3.1)
       reline (>= 0.1.5)
-    loofah (2.7.0)
+    loofah (2.8.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     method_source (1.0.0)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.5.0)
     multi_json (1.15.0)
     mustermann (1.1.1)
       ruby2_keywords (~> 0.0.1)
-    newrelic_rpm (6.13.0)
+    newrelic_rpm (6.14.0)
     nio4r (2.5.4)
-    nokogiri (1.10.10)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.11.1)
+      mini_portile2 (~> 2.5.0)
+      racc (~> 1.4)
     opengraph_parser (0.2.3)
       addressable
       nokogiri
@@ -51,18 +52,19 @@ GEM
       pry (~> 0.9)
       slop (~> 3.0)
     public_suffix (4.0.6)
-    puma (4.3.6)
+    puma (4.3.7)
       nio4r (~> 2.0)
+    racc (1.5.2)
     rack (2.2.3)
     rack-protection (2.1.0)
       rack
     rack-ssl-enforcer (0.2.9)
-    rake (13.0.1)
+    rake (13.0.3)
     rbtree3 (0.6.0)
-    redis (4.2.2)
+    redis (4.2.5)
     redis-namespace (1.8.0)
       redis (>= 3.0.4)
-    reline (0.1.5)
+    reline (0.2.1)
       io-console (~> 0.5)
     ruby2_keywords (0.0.2)
     sax-machine (1.3.2)
@@ -81,7 +83,7 @@ GEM
     slop (3.6.0)
     thor (1.0.1)
     tilt (2.0.10)
-    tzinfo (2.0.2)
+    tzinfo (2.0.4)
       concurrent-ruby (~> 1.0)
     yajl-ruby (1.4.1)