Bump puma from 4.2.1 to 4.3.0

Gemfile

@@ -40,7 +40,7 @@ gem "paperclip", "~> 5.2.1"
 gem "paranoia", "~> 2.4.2"
 gem "pg", "~> 0.21.0"
 gem "pg_search", "~> 2.0.1"
-gem "puma", "~> 4.2.1"
+gem "puma", "~> 4.3.0"
 gem "recipient_interceptor", "~> 0.2.0"
 gem "redcarpet", "~> 3.4.0"
 gem "responders", "~> 2.4.0"

Gemfile.lock

@@ -337,7 +337,7 @@ GEM
       net-ssh (>= 2.6.5)
     net-ssh (5.0.2)
     newrelic_rpm (4.1.0.333)
-    nio4r (2.3.1)
+    nio4r (2.5.2)
     nokogiri (1.10.4)
       mini_portile2 (~> 2.4.0)
     nori (2.6.0)
@@ -385,7 +385,7 @@ GEM
       activesupport (>= 4.2)
       arel (>= 6)
     public_suffix (4.0.1)
-    puma (4.2.1)
+    puma (4.3.0)
       nio4r (~> 2.0)
     rack (2.0.7)
     rack-accept (0.4.5)
@@ -638,7 +638,7 @@ DEPENDENCIES
   paranoia (~> 2.4.2)
   pg (~> 0.21.0)
   pg_search (~> 2.0.1)
-  puma (~> 4.2.1)
+  puma (~> 4.3.0)
   rails (= 5.0.7.2)
   rails-assets-leaflet!
   rails-assets-markdown-it (~> 8.2.1)!