Require two humans for bot authored PRs

[gatesn]

No description provided.

[codspeed-hq]

Merging this PR will not alter performance

✅ 1106 untouched benchmarks
⏩ 1522 skipped benchmarks¹

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_{Comparing ngates/are-we-human (bef78bf) with develop (b380c53)²}

Footnotes

1. 1522 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩

2. No successful run was found on develop (6989b98) during the generation of this report, so b380c53 was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩

[AdamGS]

As it seems like we're going to allow cladue to open PRs directly, can we write down our general AI approach/policy and discuss it?