[FIX] Update JPA version in demo container (#1576)

diff --git a/server/apps/demo/startup.sh b/server/apps/demo/startup.sh
index 2a8510f..04f3aaa 100644
--- a/server/apps/demo/startup.sh
+++ b/server/apps/demo/startup.sh
@@ -8,6 +8,6 @@
 
 java -Djdk.tls.ephemeralDHKeySize=2048 \
      -classpath '/root/resources:/root/classes:/root/libs/*' \
-     -javaagent:/root/libs/openjpa-3.1.2.jar \
+     -javaagent:/root/libs/openjpa-3.2.0.jar \
      -Dlogback.configurationFile=/root/conf/logback.xml \
-      -Dworking.directory=/root/ org.apache.james.JPAJamesServerMain
\ No newline at end of file
+      -Dworking.directory=/root/ org.apache.james.JPAJamesServerMain