devel/artifactory: Update to 5.3.0

[joneum]

Summary

• Update to 5.3.0

Changes: https://www.jfrog.com/confluence/display/RTF/Release+Notes#ReleaseNotes-Artifactory5.3

PR: 219286
Reported by: David Harrigan (Maintainer) <[e-mail]>
Approved by: xxx (mentor)
#Differential Revision: https://review.freebsd.org/D10792

Test Plan

devel/artifactory % portlint -AC
WARN: Makefile: possible use of absolute pathname "/var/run/${PORTNAME}...".
WARN: Makefile: possible use of absolute pathname "/var/${PORTNAME}".
WARN: Makefile: for new port, make $FreeBSD$ tag in comment section empty, to make SVN happy.

10amd64
10i386
11amd64
11i386
12.0-CURRENT r318899 amd64
12.0-CURRENT r318400 i386