databases/pg_cron: Upgrade from 1.6.4 to 1.6.5

  Changelog:

    * Fix superuser check before adding job to CronJobHash
    * Fix leap year scheduling problem
    * Fix possible buffer underflow issue in cron parsing
    * Fix compilation warnings

  Taken from:

    https://github.com/citusdata/pg_cron/blob/main/CHANGELOG.md

databases/pg_cron/Makefile

 PORTNAME=	pg_cron
-PORTVERSION=	1.6.4
+PORTVERSION=	1.6.5
 DISTVERSIONPREFIX=	v
 CATEGORIES=	databases
 

databases/pg_cron/distinfo

-TIMESTAMP = 1730153844
-SHA256 (citusdata-pg_cron-v1.6.4_GH0.tar.gz) = 52d1850ee7beb85a4cb7185731ef4e5a90d1de216709d8988324b0d02e76af61
-SIZE (citusdata-pg_cron-v1.6.4_GH0.tar.gz) = 55141
+TIMESTAMP = 1734275448
+SHA256 (citusdata-pg_cron-v1.6.5_GH0.tar.gz) = 0118080f995fec67e25e58d44c66953e7b2bf5a47bb0602fd2ad147ea646d808
+SIZE (citusdata-pg_cron-v1.6.5_GH0.tar.gz) = 55919