minor #19759 Document Symfony CLI --no-workers option (yguedidi)

This PR was merged into the 5.4 branch.

Discussion
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Document Symfony CLI `--no-workers` option

As requested in symfony-cli/symfony-cli#462

Commits
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d978dc5 Document Symfony CLI `--no-workers` option

Author: javiereguiluz

setup/symfony_server.rst

@@ -327,6 +327,7 @@ There are several options that you can set using a ``.symfony.local.yaml`` confi
         no_tls: true # Use HTTP instead of HTTPS
         daemon: true # Run the server in the background
         use_gzip: true # Toggle GZIP compression
+        no_workers: true # Do not start workers
 
 .. caution::
 
@@ -364,6 +365,11 @@ If you like some processes to start automatically, along with the webserver
         # auto start Docker compose when starting server (available since Symfony CLI 5.7.0)
         docker_compose: ~
 
+.. tip::
+
+    You may want to not start workers on some environments like CI. You can use the
+    ``--no-workers`` option to start the server without starting workers.
+
 .. _symfony-server-docker:
 
 Docker Integration