databases/py-psycopg-c: Update to 3.1.16

Changes:	https://github.com/psycopg/psycopg/blob/master/docs/news.rst
		https://www.psycopg.org/psycopg3/docs/news.html

databases/py-psycopg-c/Makefile

 PORTNAME=	psycopg-c
-PORTVERSION=	3.1.14
+PORTVERSION=	3.1.16
 CATEGORIES=	databases python
 MASTER_SITES=	PYPI
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}

databases/py-psycopg-c/distinfo

-TIMESTAMP = 1702028086
-SHA256 (psycopg-c-3.1.14.tar.gz) = ed64efb056d67156064c0a386a258b2720c5988d5ec9a6d67fc86d4cdb9e0f24
-SIZE (psycopg-c-3.1.14.tar.gz) = 561432
+TIMESTAMP = 1703227852
+SHA256 (psycopg-c-3.1.16.tar.gz) = 24f9805e0c20742c72c7be1412e3a600de0980104ff1a264a49333996e6adba3
+SIZE (psycopg-c-3.1.16.tar.gz) = 561407