lang/php73: Update from 7.3.11 to 7.3.12

Changelog:

    Core:
        Fixed bug #78658 (Memory corruption using Closure::bindTo).
        Fixed bug #78656 (Parse errors classified as highest log-level).
        Fixed bug #78752 (Segfault if GC triggered while generator stack frame is being destroyed).
        Fixed bug #78689 (Closure::fromCallable() doesn't handle [Closure, '__invoke']).
    COM:
        Fixed bug #78694 (Appending to a variant array causes segfault).
    Date:
        Fixed bug #70153 (\DateInterval incorrectly unserialized).
        Fixed bug #78751 (Serialising DatePeriod converts DateTimeImmutable).
    Iconv:
        Fixed bug #78642 (Wrong libiconv version displayed).
    OpCache:
        Fixed bug #78654 (Incorrectly computed opcache checksum on files with non-ascii characters).
        Fixed bug #78747 (OpCache corrupts custom extension result).
    OpenSSL:
        Fixed bug #78775 (TLS issues from HTTP request affecting other encrypted connections).
    Reflection:
        Fixed bug #78697 (ReflectionClass::ImplementsInterface - inaccurate error message with traits).
    Sockets:
        Fixed bug #78665 (Multicasting may leak memory).

Changelog taken from: https://www.php.net/ChangeLog-7.php#7.3.12

MFH:		2019Q4

lang/php73/Makefile

@@ -1,7 +1,7 @@
 # $FreeBSD$
 
 PORTNAME=	php73
-DISTVERSION=	7.3.11
+DISTVERSION=	7.3.12
 PORTREVISION?=	0
 CATEGORIES?=	lang devel www
 MASTER_SITES=	PHP/distributions

lang/php73/distinfo

@@ -1,3 +1,3 @@
-TIMESTAMP = 1571995527
-SHA256 (php-7.3.11.tar.xz) = 657cf6464bac28e9490c59c07a2cf7bb76c200f09cfadf6e44ea64e95fa01021
-SIZE (php-7.3.11.tar.xz) = 12092412
+TIMESTAMP = 1574409147
+SHA256 (php-7.3.12.tar.xz) = aafe5e9861ad828860c6af8c88cdc1488314785962328eb1783607c1fdd855df
+SIZE (php-7.3.12.tar.xz) = 12095212