Upgrade to latest available browserless image

Browserless migrated away from Docker Hub and the latest versions
are now available on GitHub's Container Registry.

docker-compose.yml

@@ -164,7 +164,7 @@ services:
       DATABASE_URL: postgresql://openproject:openproject@db-test/openproject
       DATABASE_CLEANER_ALLOW_REMOTE_DATABASE_URL: "true"
       SELENIUM_GRID_URL: http://selenium-hub:4444/wd/hub
-      CHROME_URL: http://cuprite-chrome:3333
+      CHROME_WS_URL: ws://cuprite-chrome:3000/chrome
       CAPYBARA_SERVER_PORT: 3000
       CAPYBARA_DYNAMIC_BIND_IP: 1
       CAPYBARA_APP_HOSTNAME: backend-test
@@ -232,12 +232,11 @@ services:
   cuprite-chrome:
     # Currently, Apple M1 is only supported in unnumbered "latest" versions.
     # See https://github.com/browserless/chrome/issues/1393
-    image: browserless/chrome:latest
+    image: ghcr.io/browserless/chrome:latest
     networks:
       - testing
     environment:
-      # By default, it uses 3000, which is typically used by Rails.
-      PORT: 3333
+      HOST: cuprite-chrome
       # Set connection timeout to avoid timeout exception during debugging
       # https://docs.browserless.io/docs/docker.html#connection-timeout
       CONNECTION_TIMEOUT: 600000