New issue by 0x5c on void-packages repository

https://github.com/void-linux/void-packages/issues/36253

Description:
### ... then nuke the ones that didn't.

## Rationale
The backlog is enormous, scary, and full of PRs that don't meet quality requirements, are waiting (for months) for requested changes, and/or have generally been abandoned. There's even PRs that no longer have an author (#29665, #30909). 
This idea was mentioned multiple times in the IRC channel by multiple people, with a positive response.

## How
1. Set a cutoff amount of inactivity, ie: 6 months
2. Get the list of PRs matching that inactivity to a file, ie: `gh pr list -L 2000 -S 'updated:<=2021-09-20' > file.tsv`
    The issue number is the first column
4. Using a script and the GH API, do for each PR in the list:
    1. Apply the already-existing `inactive` tag
    2. Send a message explaining that the PR will be closed in two weeks if it doesn't get any activity.
5. Wait two weeks
6. Close marked PRs that didn't get any updates.
    This part could be done automatically if searching for `label:inactive updated:<=[date of script run]T[time of script run]`, although it will miss PRs where the activity was just "I don't use void anymore". I suspect this will not be a big problem considering how dead the backlog is.