Allow additional_checks and checks to declare filesToCheck

[boesing]

Feature Request

Q	A
New Feature	yes
RFC	yes
BC Break	no

Summary

I do use additional_checks quite often and I wonder if we should allow some kind of additional (optional) configuration to declare files to check so that these checks are (if defined) only generated when these files have changed in diff.

Thoughts?

Ref:

laminas-ci-matrix-action/src/tools.ts

Line 74 in 5c34e3c

filesToCheck : [ 'doc/book/' ],

Ref: https://github.com/laminas/laminas-cache-storage-adapter-benchmark/actions/runs/9086056113/job/24970861978?pr=17