modules.yumpkg5._parse_pkginfo(): avoid shadowing

************* Module salt.modules.yumpkg5
salt/modules/yumpkg5.py:74: [W0621(redefined-outer-name), _parse_pkginfo] Redefining name 'version' from outer scope (line 227)
Merge pull request #9551 from cvrebert/patch-4

modules.yumpkg5._parse_pkginfo(): avoid shadowing