Use selenium multi-arch image instead of the arm fork

See https://www.selenium.dev/blog/2024/multi-arch-images-via-docker-selenium/

Author: rafaelfranca

railties/lib/rails/generators/rails/devcontainer/templates/devcontainer/compose.yaml.tt

@@ -26,7 +26,7 @@ services:
 <%- if options[:system_test] -%>
 
   selenium:
-    image: seleniarm/standalone-chromium
+    image: selenium/standalone-chromium
     restart: unless-stopped
 <%- end -%>
 

railties/test/fixtures/.devcontainer/compose.yaml

@@ -20,7 +20,7 @@ services:
     - redis
 
   selenium:
-    image: seleniarm/standalone-chromium
+    image: selenium/standalone-chromium
     restart: unless-stopped
 
   redis:

railties/test/generators/app_generator_test.rb

@@ -1258,7 +1258,7 @@ def test_devcontainer
       assert_equal expected_rails_app_config, compose_config["services"]["rails-app"]
 
       expected_selenium_conifg = {
-        "image" => "seleniarm/standalone-chromium",
+        "image" => "selenium/standalone-chromium",
         "restart" => "unless-stopped",
       }