fix: Gemfile & Gemfile.lock to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-RUBY-PUMA-8062124

Gemfile

@@ -29,7 +29,7 @@ gem 'omniauth_openid_connect', '>= 0.6.1'
 gem 'omniauth-rails_csrf_protection', '~> 1.0.2'
 gem 'pagy', '~> 6.0', '>= 6.0.0'
 gem 'pg'
-gem 'puma', '~> 5.6'
+gem 'puma', '~> 5.6', '>= 5.6.9'
 gem 'rails', '~> 7.1.3', '>= 7.1.3.3'
 gem 'redis', '~> 4.0'
 gem 'sprockets-rails', '>= 3.5.0'

Gemfile.lock

@@ -315,7 +315,7 @@ GEM
     psych (5.1.2)
       stringio
     public_suffix (5.0.3)
-    puma (5.6.8)
+    puma (5.6.9)
       nio4r (~> 2.0)
     racc (1.8.0)
     rack (2.2.9)
@@ -533,7 +533,7 @@ DEPENDENCIES
   omniauth_openid_connect (>= 0.6.1)
   pagy (~> 6.0, >= 6.0.0)
   pg
-  puma (~> 5.6)
+  puma (~> 5.6, >= 5.6.9)
   rails (~> 7.1.3, >= 7.1.3.3)
   redis (~> 4.0)
   remote_syslog_logger
@@ -551,3 +551,9 @@ DEPENDENCIES
   web-console (>= 4.2.1)
   webdrivers
   webmock
+
+RUBY VERSION
+   ruby 3.0.0p0
+
+BUNDLED WITH
+   2.2.3