Log Message:
textproc/ruby-markaby: update to 0.9.3

0.9.1 (2023-12-04)

* update release tasks [tech task]
* re-release version since code was included in last release

0.9.2 (2023-12-08)

* update README
* set required ruby version to >= 2.7

0.9.3 (2023-12-08)

* Fix release issue