Fix Zeitwerk load error with Sidekiq

This was reported as a potential fixed based on:
  hotwired/turbo-rails#285 (comment)

The root cause isn't known at the time of making this commit but this
will at least let us run Active Jobs without errors for now.

CHANGELOG.md

@@ -67,6 +67,10 @@ Changelog](https://keepachangelog.com/en/1.0.0/).
 - `tailwindcss-stimulus-components` front-end package
 - `@rails/activestorage` front-end package (you can always add it back if you use this feature)
 
+### Fixed
+
+- Use `bundle exec sidekiq` instead of `sidekiq` which fixes issue https://github.com/nickjj/docker-rails-example/issues/30
+
 ## [0.4.0] - 2021-07-01
 
 ### Added

docker-compose.yml

@@ -63,7 +63,7 @@ services:
 
   worker:
     <<: *default-app
-    command: "sidekiq -C config/sidekiq.yml"
+    command: "bundle exec sidekiq -C config/sidekiq.yml"
     entrypoint: []
     deploy:
       resources: