POM: Do not build and push container image by default.

Change-Id: I508f1ab70a1d9e1c82acb81a94b9ab2787153dad
diff --git a/build.xml b/build.xml
index 30b0d5c..ffa6512 100644
--- a/build.xml
+++ b/build.xml
@@ -88,6 +88,7 @@
   <target name="deploy" description="Deploy JAR to Kubernetes">
     <exec executable="./mvnw">
       <arg value="package"/>
+      <arg value="-Dquarkus.container-image.build=true"/>
       <arg value="-Dquarkus.container-image.push=true"/>
     </exec>
     <exec executable="kubectl">