Move unused build gems from ActionCable group

- blade and sprockets-export are only used by ActionView
- blade-sauce_labs_plugin is no longer used, removed in #34440

Gemfile

@@ -78,10 +78,6 @@ group :cable do
   gem "redis-namespace", github: "resque/redis-namespace"
 
   gem "websocket-client-simple", github: "matthewd/websocket-client-simple", branch: "close-race", require: false
-
-  gem "blade", require: false, platforms: [:ruby]
-  gem "blade-sauce_labs_plugin", require: false, platforms: [:ruby]
-  gem "sprockets-export", require: false
 end
 
 # Active Storage
@@ -102,6 +98,12 @@ group :ujs do
   gem "webdrivers"
 end
 
+# Action View
+group :view do
+  gem "blade", require: false, platforms: [:ruby]
+  gem "sprockets-export", require: false
+end
+
 # Add your own local bundler stuff.
 local_gemfile = File.expand_path(".Gemfile", __dir__)
 instance_eval File.read local_gemfile if File.exist? local_gemfile

Gemfile.lock

@@ -177,10 +177,6 @@ GEM
       thor (>= 0.19.1)
       useragent (~> 0.16.7)
     blade-qunit_adapter (2.0.1)
-    blade-sauce_labs_plugin (0.7.3)
-      childprocess
-      faraday
-      selenium-webdriver
     bootsnap (1.5.0)
       msgpack (~> 1.0)
     builder (3.2.4)
@@ -564,7 +560,6 @@ DEPENDENCIES
   bcrypt (~> 3.1.11)
   benchmark-ips
   blade
-  blade-sauce_labs_plugin
   bootsnap (>= 1.4.4)
   byebug
   capybara (>= 3.26)