replace puma with thin for dev server

Gemfile

···
 gem 'jwt'
 
 group :development do
-  gem 'puma'
+  gem 'thin'
   gem 'rackup'
   gem 'capistrano', '~> 2.0'
 

Gemfile.lock

···
     cbor (0.5.10.1)
     concurrent-ruby (1.3.5)
     connection_pool (2.5.3)
+    daemons (1.4.1)
     date (3.4.1)
     dotenv (3.1.8)
     drb (2.2.3)
···
     net-ssh (7.3.0)
     net-ssh-gateway (2.0.0)
       net-ssh (>= 4.0.0)
-    nio4r (2.7.4)
     pg (1.6.1)
     pg (1.6.1-aarch64-linux)
     pg (1.6.1-aarch64-linux-musl)
···
     psych (5.2.6)
       date
       stringio
-    puma (6.6.1)
-      nio4r (~> 2.0)
     rack (3.2.0)
     rack-protection (4.1.1)
       base64 (>= 0.1.0)
···
       eventmachine (~> 1.2, >= 1.2.7)
       faye-websocket (~> 0.12)
     stringio (3.1.7)
+    thin (2.0.1)
+      daemons (~> 1.0, >= 1.0.9)
+      eventmachine (~> 1.0, >= 1.0.4)
+      logger
+      rack (>= 1, < 4)
     tilt (2.6.1)
     timeout (0.4.3)
     tzinfo (2.0.6)
···
   jwt
   minisky (~> 0.5)
   pg
-  puma
   rackup
   rainbow
   rake
   sinatra
   sinatra-activerecord (~> 2.0)
   skyfall (~> 0.6)
+  thin
 
 BUNDLED WITH
    2.7.0

bin/server

···
 
 require 'bundler/setup'
 require 'app/server'
+require 'thin'
 
 Server.run!