Invalid input, disable_phpcpd is not defined in the referenced workflow

[dmitriim]

It used to work, but started to fail.

https://github.com/catalyst/moodle-tool_dynamic_cohorts/blob/MOODLE_404_STABLE/.github/workflows/ci.yml#L13

Looks like disable_phpcpd removed for some reason as part of d8cad7f Still in docs though https://github.com/catalyst/catalyst-moodle-workflows?tab=readme-ov-file#with-options

[dmitriim]

Looks like phpcpd is not supported anymore https://github.com/sebastianbergmann/phpcpd
So the check needs to be removed