Update dependency gitlab-dangerfiles to '~> 3.6.5'

What does this MR do and why?

This MR upgrades gitlab-dangerfiles to 3.6.5 along with spec change to reflect this update (gitlab-org/ruby/gems/gitlab-dangerfiles@044c577d) in https://gitlab.com/gitlab-org/ruby/gems/gitlab-dangerfiles/-/tags/v3.6.5.

MR acceptance checklist

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• I have evaluated the MR acceptance checklist for this MR.