Do not set up cable DB if skipping action cable (rails#52923)

When creating a new rails app with the `--skip-action-cable` option,
the generated `database.yml` should not set up the `cable` database.

Author: jeromedalbert

railties/lib/rails/generators/rails/app/templates/config/databases/mysql.yml.tt

@@ -73,8 +73,10 @@ production:
     <<: *primary_production
     database: <%= app_name %>_production_queue
     migrations_paths: db/queue_migrate
+  <%- unless options.skip_action_cable? -%>
   cable:
     <<: *primary_production
     database: <%= app_name %>_production_cable
     migrations_paths: db/cable_migrate
+  <%- end -%>
 <%- end -%>

railties/lib/rails/generators/rails/app/templates/config/databases/postgresql.yml.tt

@@ -105,8 +105,10 @@ production:
     <<: *primary_production
     database: <%= app_name %>_production_queue
     migrations_paths: db/queue_migrate
+  <%- unless options.skip_action_cable? -%>
   cable:
     <<: *primary_production
     database: <%= app_name %>_production_cable
     migrations_paths: db/cable_migrate
+  <%- end -%>
 <%- end -%>

railties/lib/rails/generators/rails/app/templates/config/databases/sqlite3.yml.tt

@@ -62,9 +62,11 @@ production:
     <<: *default
     database: storage/production_queue.sqlite3
     migrations_paths: db/queue_migrate
+  <%- unless options.skip_action_cable? -%>
   cable:
     <<: *default
     database: storage/production_cable.sqlite3
     migrations_paths: db/cable_migrate
+  <%- end -%>
 <%- end -%>
 <%- end -%>

railties/lib/rails/generators/rails/app/templates/config/databases/trilogy.yml.tt

@@ -73,8 +73,10 @@ production:
     <<: *primary_production
     database: <%= app_name %>_production_queue
     migrations_paths: db/queue_migrate
+  <%- unless options.skip_action_cable? -%>
   cable:
     <<: *primary_production
     database: <%= app_name %>_production_cable
     migrations_paths: db/cable_migrate
+  <%- end -%>
 <%- end -%>

railties/test/generators/app_generator_test.rb

@@ -237,6 +237,9 @@ def test_app_update_does_not_generate_action_cable_contents_when_skip_action_cab
     assert_file "config/environments/production.rb" do |content|
       assert_no_match(/config\.action_cable/, content)
     end
+    assert_file "config/database.yml" do |content|
+      assert_no_match(/cable:/, content)
+    end
   end
 
   def test_app_update_does_not_generate_bootsnap_contents_when_skip_bootsnap_is_given