databases/plpgsql_check: Update to 2.7.6

Changes:	https://github.com/okbob/plpgsql_check/releases

databases/plpgsql_check/Makefile

 PORTNAME=	plpgsql_check
-PORTVERSION=	2.7.5
+PORTVERSION=	2.7.6
 DISTVERSIONPREFIX=	v
 CATEGORIES=	databases
 PKGNAMEPREFIX=	postgresql${PGSQL_VER_NODOT}-

databases/plpgsql_check/distinfo

-TIMESTAMP = 1712084456
-SHA256 (okbob-plpgsql_check-v2.7.5_GH0.tar.gz) = d067772c6a060702424aadb3d8adbbe513cfb41c839ed2cac52bced99c73b963
-SIZE (okbob-plpgsql_check-v2.7.5_GH0.tar.gz) = 254593
+TIMESTAMP = 1717244847
+SHA256 (okbob-plpgsql_check-v2.7.6_GH0.tar.gz) = 96903e17f548e5f05b92440ba81a4aa64625b29647303b236336335ffec9d2d1
+SIZE (okbob-plpgsql_check-v2.7.6_GH0.tar.gz) = 254603