Update common-packer to v0.5.2

Fetch lastest support for CentOS 8 builds
Fetch "Fix provisioner to install Git 2 from IUS"

Issue-ID: CIMAN-33
Signed-off-by: Jessica Wagantall <jwagantall@linuxfoundation.org>
Change-Id: Idb907705a6d49ff46f9b8261c5cc6235b56e2e8c
1 file changed