Updating the list of installed kubectl versions within the vault manager
docker image, to support the correct list of version for the master
branch. New tag name is based on the latest kubectl version installed.
Test Plan:
PASS Vault sanity
PASS Test rekey with the created docker image
Story: 2010930
Task: 49526
Change-Id: Id77360f6bdba4cc6d6b5287d6410d9a8c1d78971
Signed-off-by: Tae Park <tae.park@windriver.com>