Upgrade RedHat UBI to 9.3-1476

Closes gh-39228

Author: scottfrederick

spring-boot-tests/spring-boot-integration-tests/spring-boot-launch-script-tests/src/intTest/resources/conf/RedHat/ubi9-9.2-722/Dockerfile renamed to spring-boot-tests/spring-boot-integration-tests/spring-boot-launch-script-tests/src/intTest/resources/conf/RedHat/ubi9-9.3-1476/Dockerfile

@@ -1,10 +1,10 @@
-FROM redhat/ubi9:9.2-722 as prepare
+FROM redhat/ubi9:9.3-1476 as prepare
 COPY downloads/* /opt/download/
 RUN mkdir -p /opt/jdk && \
     cd /opt/jdk && \
     tar xzf  /opt/download/* --strip-components=1
 
-FROM redhat/ubi9:9.2-722
+FROM redhat/ubi9:9.3-1476
 COPY --from=prepare /opt/jdk /opt/jdk
 ENV JAVA_HOME /opt/jdk
 ENV PATH $JAVA_HOME/bin:$PATH