Merge pull request #878 from ProgrammingDaisukiClub/dependabot/bundler/puma-4.3.12

Bump puma from 4.3.8 to 4.3.12

Author: exKAZUu

Gemfile.lock

@@ -150,7 +150,7 @@ GEM
       net-protocol
       time
     net-protocol (0.1.0)
-    nio4r (2.5.7)
+    nio4r (2.5.8)
     nokogiri (1.11.6)
       mini_portile2 (~> 2.5.0)
       racc (~> 1.4)
@@ -166,7 +166,7 @@ GEM
       byebug (~> 11.0)
       pry (~> 0.13.0)
     public_suffix (4.0.6)
-    puma (4.3.8)
+    puma (4.3.12)
       nio4r (~> 2.0)
     racc (1.5.2)
     rack (2.2.3)