Consider drafting minutes and linking to them in a more timely fashion

[tidoust]

We already have helper scripts that issue IRC commands to

1. draft minutes after breakout sessions take place, and
2. edit issue descriptions to add links to known minutes.

These scripts are typically run at the end of the day for 1., and the week after for 2. Feedback on Slack suggests doing these operations right after the end of individual sessions.

One relatively simple approach would be to run the scripts in a job that runs every couple of hours on breakouts day (or, ideally, at the end of each slot).

This would also avoid running into most cases where minutes get generated for the next day (see #178).

One complication is that people may not use IRC to record minutes, in which case the underlying issue will end up linking to an empty, or quasi empty, minutes page, with no good way to detect missing minutes. But then that problem already exists when we run the second script a week after.