Re-add dummy redis job

jobs/cloud_controller_ng/spec

@@ -1239,7 +1239,7 @@ properties:
     default: false
 
   cc.experimental.use_redis:
-    description: "Use co-deployed Redis for rate limiting and metrics. If the Puma webserver is enabled, Redis will automatically be used."
+    description: "Use co-deployed Valkey (Redis fork) for rate limiting and metrics. If the Puma webserver is enabled, Valkey will automatically be used."
     default: false
 
   cc.puma.workers:

jobs/redis/monit

@@ -0,0 +1 @@
+# Empty

jobs/redis/spec

@@ -0,0 +1,6 @@
+---
+name: redis
+
+templates: []
+
+properties: {}

spec/cloud_controller_ng/cloud_controller_ng_spec.rb

@@ -567,9 +567,9 @@ module Test
             end
           end
 
-          describe 'redis config' do
+          describe 'valkey config' do
             context 'when the puma webserver is used' do
-              it 'renders the redis socket into the ccng config' do
+              it 'renders the valkey socket into the ccng config' do
                 merged_manifest_properties['cc']['experimental'] = { 'use_puma_webserver' => true }
                 template_hash = YAML.safe_load(template.render(merged_manifest_properties, consumes: links))
                 expect(template_hash['redis']['socket']).to eq('/var/vcap/data/valkey/valkey.sock')