When building native images, always do it in a Docker container.

Change-Id: I3e1532f13072432689971573a69295752a33335e
diff --git a/src/main/resources/application.properties b/src/main/resources/application.properties
index 1e6de8a..9930432 100644
--- a/src/main/resources/application.properties
+++ b/src/main/resources/application.properties
@@ -73,6 +73,8 @@
 quarkus.jib.base-jvm-image = adoptopenjdk:14-jre-hotspot
 quarkus.jib.jvm-arguments = -XX:+UnlockExperimentalVMOptions,-XX:+UseShenandoahGC,-XX:ShenandoahGCHeuristics=compact
 
+quarkus.native.container-runtime = docker
+
 kubernetes.deployment.target = kubernetes
 kubernetes.group = mulk
 kubernetes.name = mulkcms2