Prepare for 2.4.0 release candidate 1.
Prepare for 2.4.0 release candidate 1.

openbouquet/HikariCP,ams2990/HikariCP,nitincchauhan/HikariCP,brettwooldridge/HikariCP,hito-asa/HikariCP,yaojuncn/HikariCP,brettwooldridge/HikariCP,mwegrz/HikariCP,Violantic/HikariCP,ligzy/HikariCP,kschmit90/HikariCP,atschx/HikariCP,sridhar-newsdistill/HikariCP,785468931/HikariCP,barrysun/HikariCP,zhuyihao/HikariCP,junlapong/HikariCP,polpot78/HikariCP,squidsolutions/HikariCP,udayshnk/HikariCP,schlosna/HikariCP