jxmpp-stringprep;icu4j: Bump ICU4J from 55.1 to 62.2
jxmpp-stringprep;icu4j: Bump ICU4J from 55.1 to 62.2

Flowdalic/jxmpp,igniterealtime/jxmpp,igniterealtime/jxmpp,igniterealtime/jxmpp,Flowdalic/jxmpp,Flowdalic/jxmpp