Upgrade archivers/rpm4 from 4.14.2 to 4.14.2.1

Changelog:

• Fix regression (RhBug:1640470) in 4.14.2
• Fix package verification memory leak introduced in 4.14.2
• Fix long-standing Python GIL locking bug
• Fix long-standing broken library path of embedded Lua

Changes : http://rpm.org/wiki/Releases/4.14.2.1

MFH: 2018Q4