ci: Temporarily allow 'rspec foss-impact' to fail

What does this MR do and why?

This allows the rspec foss-impact job to fail temporarily because of the changes introduced by !96152 (merged).

We should revert this change when !96797 (merged) is merged (actually, !96797 (merged) will remove this change anyway).

This will avoid annoying people with the rspec foss-impact job which can fail way more often than before !96152 (merged).

Related to #372476 (closed).

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