Upgrade rpm4 from 4.13.0.2 to 4.13.1

Major changes:

• Fix CVE-2017-7501
• Fix file lists getting fed to file triggers multiple times
• Fix not all %transfiletriggerpostun file triggers executing (RhBug:1514085)
• Fix file triggers executing before file fingerprinting
• Fix file triggers firing on non-installed files
• Fix file signatures failing on hardlinked files (#333)

Full release note : http://rpm.org/wiki/Releases/4.13.1

Security: CVE-2017-7501
MFH: 2018Q2