deps: Update dependency puma to v8

Gemfile

@@ -2,7 +2,7 @@ source 'https://rubygems.org'
 ruby '>= 3.1'
 
 gem 'sinatra',         '~> 4.2'
-gem 'puma',            '~> 6.6'
+gem 'puma',            '~> 8.0'
 gem 'rack',            '~> 3.2'
 gem 'rack-protection', '~> 4.2'
 gem 'rackup',          '~> 2.3'

Gemfile.lock

@@ -52,7 +52,7 @@ GEM
     pg (1.7.0-x86_64-darwin)
     pg (1.7.0-x86_64-linux)
     pg (1.7.0-x86_64-linux-musl)
-    puma (6.6.1)
+    puma (8.0.2)
       nio4r (~> 2.0)
     rack (3.2.8)
     rack-protection (4.2.1)
@@ -103,7 +103,7 @@ DEPENDENCIES
   erubi (~> 1.13)
   minitest (~> 5.25)
   pg (~> 1.5)
-  puma (~> 6.6)
+  puma (~> 8.0)
   rack (~> 3.2)
   rack-protection (~> 4.2)
   rack-test (~> 2.2)