Update Ruby version from 3.3.4 to 3.4.3

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: justin808

.ruby-version

@@ -1 +1 @@
-3.3.4
+3.4.3

Gemfile

@@ -3,7 +3,7 @@
 source "https://rubygems.org"
 git_source(:github) { |repo| "https://github.com/#{repo}.git" }
 
-ruby "3.3.4"
+ruby "3.4.3"
 
 gem "react_on_rails", "16.1.1"
 gem "shakapacker", "9.0.0.beta.8"
@@ -45,11 +45,6 @@ gem "autoprefixer-rails"
 
 gem "awesome_print"
 
-# Needed until Ruby 3.3.4 is released https://github.com/ruby/ruby/pull/11006
-# Related issue: https://github.com/ruby/net-pop/issues/26
-# TODO: When Ruby 3.3.4 is released, upgrade Ruby and remove this line
-gem "net-pop", github: "ruby/net-pop"
-
 gem "redcarpet"
 
 # jquery as the JavaScript library has been moved under /client and managed by npm.

Gemfile.lock

@@ -1,10 +1,3 @@
-GIT
-  remote: https://github.com/ruby/net-pop.git
-  revision: e8d0afe2773b9eb6a23c39e9e437f6fc0fc7c733
-  specs:
-    net-pop (0.1.2)
-      net-protocol
-
 GEM
   remote: https://rubygems.org/
   specs:
@@ -148,8 +141,6 @@ GEM
       factory_bot (~> 6.4)
       railties (>= 5.0.0)
     ffi (1.17.0)
-    ffi (1.17.0-arm64-darwin)
-    ffi (1.17.0-x86_64-linux-gnu)
     foreman (0.88.1)
     generator_spec (0.10.0)
       activesupport (>= 3.0.0)
@@ -195,6 +186,8 @@ GEM
     net-imap (0.5.10)
       date
       net-protocol
+    net-pop (0.1.2)
+      net-protocol
     net-protocol (0.2.2)
       timeout
     net-smtp (0.5.1)
@@ -474,7 +467,6 @@ DEPENDENCIES
   jbuilder
   launchy
   listen
-  net-pop!
   pg
   pry
   pry-byebug
@@ -508,7 +500,7 @@ DEPENDENCIES
   web-console
 
 RUBY VERSION
-   ruby 3.3.4p94
+   ruby 3.4.3p32
 
 BUNDLED WITH
    2.4.17