FR: Have the approve responder fill "Version accepted" in the issue body

[maelle]

Issue ropensci/software-review#485
repo https://github.com/ropensci/ReLTER
the version is in the DESCRIPTION file https://github.com/ropensci/ReLTER/blob/1c85a463239be70a80608f3d9c593cfed048e627/DESCRIPTION#L4

Cc @mpadge

[maelle]

I wonder whether we need a pre-approve command that will remind authors to bump their package's version. Thoughts @mpadge?

[mpadge]

Any body variables are automatically available for buffy, so just need buffy to grab the version from current repo (task for @xuanxu), and error if that is !>= submitted_version, otherwise proceed to fill version_accepted with that value. Right?

[maelle]

oh good idea!