devel/cdialog: update to 1.3-20221229

• fix MASTER_SITES as advised by upstream
• wire up TEST_TARGET
• bracket regex in REINPLACE_CMD to avoid replacing unrelated variables

Changelog: https://invisible-island.net/dialog/CHANGES

PR: 267777
Reported by: Philipp Engel <kidon@posteo.de>
Approved by: flo (mentor)
Differential Revision: https://reviews.freebsd.org/D38637