Closes #31901 replaces #31914

Summary of Changes

Improvements to the update:joomla:remove-old-files CLI Command

• Adds an option for --dry-run
• Adds an output change for very verbose mode -vv
• Adds an output change for debug mode -vvv

--dry-run option is a standard for all Symfony based commands that do destructive things.

-v -vv -vvv options are a standard Symfony command option for increasing the verbosity to assist with debugging and gathering additional information from a command.

Also See #31941 for a proposal to rename this command to Joomla:update:cleanup but this PR can be applied without that one.

Testing Instructions

run these commands to create yourself some folders and files to then go on to delete with the CLI from this PR:

touch administrator/components/com_actionlogs/actionlogs.php
touch administrator/components/com_actionlogs/controller.php
mkdir -p templates/system/images
mkdir -p templates/system/html
mkdir -p templates/protostar/less
mkdir -p templates/protostar/language/en-GB
mkdir -p templates/protostar/language
mkdir -p templates/protostar/js
mkdir -p templates/protostar/img
mkdir -p templates/protostar/images/system

Apply PR.

Run these commands as a test of each new feature:

This command should show s summary, but not delete anything:
php cli/joomla.php update:joomla:remove-old-files --dry-run

--

This command should show what files and folders will be deleted
php cli/joomla.php update:joomla:remove-old-files --dry-run -vv

--

This command should show what files and folders are checked and what will be deleted (output is huge, so screenshots below are snipped to show important bits)
php cli/joomla.php update:joomla:remove-old-files --dry-run -vvv

--

You can then set up your folders/files with the test script above, and run any of these commands to ACTUALLY DELETE the files and folders.

php cli/joomla.php update:joomla:remove-old-files

php cli/joomla.php update:joomla:remove-old-files -vv

and lastly php cli/joomla.php update:joomla:remove-old-files -vvv but Im not going to show that output as its huge and meant for debugging.

Actual result BEFORE applying this Pull Request

Expected result AFTER applying this Pull Request

As explained above

Documentation Changes Required