ctl/hwdep/seq: optimize to gi-docgen 2023.3 or later

[GitHub pull_request - opened <github@xxxxxxxxxxxxxxxx>]

alsa-project/alsa-gobject pull request #84 was opened from takaswie:

The version of gi-docgen applies the restrict rule for the version expression. In the rule, the dot following to the number causes failure.

The series of changes in this MR solves the failure.

Request URL   : https://github.com/alsa-project/alsa-gobject/pull/84
Patch URL     : https://github.com/alsa-project/alsa-gobject/pull/84.patch
Repository URL: https://github.com/alsa-project/alsa-gobject