Update Infinispan session cache config snippet

[miuponn]

• Added java_serial_allowlist updated property naming for java_serial_whitelist for future-proofing in case of removal of deprecated naming.

Extending OL Fixes from OpenLiberty/ci.docker#320 to WL Docker Images

Fixes OpenLiberty/ci.docker#320

• Addresses yum install maven failure in infinispan-client-setup.sh helper script.

Fixes OpenLiberty/ci.docker#324

• Adds Infinispan service name (i.e. example-inifinispan:11222) as a fallback for the Liberty client when the $INFINISPAN_HOST (IP address) does not point to the Infinispan Service due to an IP change.
• Remove beta support tag in infinispan-client-sessioncache.xml

Fixes OpenLiberty/ci.docker#258

• Fixes TLS/SSL connection failure using Infinispan Operator. The Liberty (infinispan-client-sessioncache.xml) Hot Rod client is adjusted to use OpenShift Service CA as a truststore, which is used by default by Infinispan Operator when creating an Infinispan Cluster.