Update dependency puma to v6

Author: renovate[bot]

Gemfile

@@ -18,7 +18,7 @@ gem "rails", "~> 7.0.8"
 # gem "sqlite3", "~> 1.4"
 
 # Use the Puma web server [https://github.com/puma/puma]
-gem "puma", "~> 5.0"
+gem "puma", "~> 6.0"
 
 # Use JavaScript with ESM import maps [https://github.com/rails/importmap-rails]
 # gem "importmap-rails"

Gemfile.lock

@@ -304,7 +304,7 @@ GEM
     net-smtp (0.5.0)
       net-protocol
     netrc (0.11.0)
-    nio4r (2.7.1)
+    nio4r (2.7.3)
     nokogiri (1.16.5)
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
@@ -342,7 +342,7 @@ GEM
     psych (5.1.2)
       stringio
     public_suffix (5.0.4)
-    puma (5.6.8)
+    puma (6.4.2)
       nio4r (~> 2.0)
     racc (1.7.3)
     rack (2.2.9)
@@ -602,7 +602,7 @@ DEPENDENCIES
   ougai (~> 2.0)
   pg
   pry-byebug
-  puma (~> 5.0)
+  puma (~> 6.0)
   rack-cors
   raddocs
   rails (~> 7.0.8)