### What this PR does / why we need it?
This patch add per pr image build for branch `releases/v0.18.0`, Due to
the limitations of the quay naming convention, we should not name the
image tag the same as branch name, we name the image
tag`releases-v0.18.0` for daily build.
Signed-off-by: hfadzxy <starmoon_zhang@163.com>