META: Contribution Event Initiative mentoring tasks

Remove parent and add related issues.

Added tasks to kickoff meeting:

#3338743: Contribution Event Initiative mentorship meetings (kickoff) - 26 January 2023 →

and review meeting:

#3338759: Contribution Event Initiative mentorship meetings (review) - 2 February 2023 →

Once there are tasks that are more hands-on rather than review, we'll make child issues here.

Kristen Pol → credited julielykke → .

Adjusting title.

I wasn't available last weekend or the last few days, so am tagging this with ContributionWeekend2023 for my contribution work today.