chore: use latest java version for one of Java 8 Travis jobs
chore: use latest java version for one of Java 8 Travis jobs

pgjdbc/pgjdbc,jorsol/pgjdbc,jorsol/pgjdbc,jorsol/pgjdbc,pgjdbc/pgjdbc,davecramer/pgjdbc,sehrope/pgjdbc,zapov/pgjdbc,jkutner/pgjdbc,jkutner/pgjdbc,marschall/pgjdbc,jkutner/pgjdbc,AlexElin/pgjdbc,lordnelson/pgjdbc,golovnin/pgjdbc,whitingjr/pgjdbc,jorsol/pgjdbc,sehrope/pgjdbc,marschall/pgjdbc,lordnelson/pgjdbc,jamesthomp/pgjdbc,golovnin/pgjdbc,pgjdbc/pgjdbc,AlexElin/pgjdbc,zemian/pgjdbc,whitingjr/pgjdbc,whitingjr/pgjdbc,Gordiychuk/pgjdbc,davecramer/pgjdbc,golovnin/pgjdbc,pgjdbc/pgjdbc,zapov/pgjdbc,zemian/pgjdbc,sehrope/pgjdbc,Gordiychuk/pgjdbc,davecramer/pgjdbc,marschall/pgjdbc,panchenko/pgjdbc,marschall/pgjdbc,sehrope/pgjdbc,zemian/pgjdbc,Gordiychuk/pgjdbc,jamesthomp/pgjdbc,lordnelson/pgjdbc,panchenko/pgjdbc,AlexElin/pgjdbc,davecramer/pgjdbc,jamesthomp/pgjdbc,panchenko/pgjdbc,zapov/pgjdbc