feat: new disableComment input

[weilinzung]

Closes #356

• To support the matrix strategy(multiple job runs), the best usage is to allow disabling auto-commenting to the pull request.
• To allow disabling auto-commenting, this makes it less noisy, like 20+ matrix jobs could post 20+ comments

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[jhuleatt]

Hi @weilinzung, thank you! This needed a couple of changes, which I made in #371. I gave you co-author credit in that PR.