devel/notcurses: Update to 2.3.4

This update from v2.3.1 to v2.3.4 has to skip v2.3.3 because
it has a broken unit test when run in ASCII mode.

Changelogs: https://github.com/dankamongmen/notcurses/releases/tag/v2.3.4

https://github.com/dankamongmen/notcurses/releases/tag/v2.3.2

PR: 256700