Patch: Bump init for a fixed agent

 - Brings a fixes kairos-agent that can deal with providers sending
   empty responses during the interactive-install bus event. Otherwise
it would try to parse the response as json and fail, polluting the
screen and rbeaking the interactive install behaviour

Signed-off-by: Itxaka <itxaka@kairos.io>

Author: Itxaka

images/Dockerfile

@@ -1,5 +1,5 @@
 ARG BASE_IMAGE=ubuntu:20.04
-ARG KAIROS_INIT=v0.5.21
+ARG KAIROS_INIT=v0.5.22
 
 FROM quay.io/kairos/kairos-init:${KAIROS_INIT} AS kairos-init