textproc/py-precis_i18n: Update to 1.0.5

• use USE_PYTHON=pytest instead of custom do-test target

Changelog: https://github.com/byllyfish/precis_i18n/releases/tag/v1.0.5

PR: 268867
Approved by: flo (mentor)
Differential Revision: https://reviews.freebsd.org/D38778