Upgrade CI image to Java 8u392+9

Closes gh-71

Author: wilkinsona

ci/image/Dockerfile

@@ -8,6 +8,6 @@ ENV JAVA_HOME /opt/openjdk
 ENV PATH $JAVA_HOME/bin:$PATH
 RUN mkdir -p /opt/openjdk && \
     cd /opt/openjdk && \
-    curl -L https://github.com/bell-sw/Liberica/releases/download/8u333+2/bellsoft-jdk8u333+2-linux-amd64.tar.gz | tar xz --strip-components=1
+    curl -L https://github.com/bell-sw/Liberica/releases/download/8u392+9/bellsoft-jdk8u392+9-linux-amd64.tar.gz | tar xz --strip-components=1
 
 ADD https://raw.githubusercontent.com/spring-io/concourse-java-scripts/v0.0.4/concourse-java.sh /opt/