update opal version in gemspec
update opal version in gemspec

RickCarlino/volt,askl56/volt,RickCarlino/volt,alexandred/volt,jfahrer/volt,matthew342/volt,ahnbizcad/volt,orbitalimpact/crystal-meth,merongivian/volt,Gaelan/volt,askl56/volt,ahnbizcad/volt,Gaelan/volt,RickCarlino/volt,matthew342/volt,dummey/volt,merongivian/volt,ASnow/volt,sinventor/volt,matthew342/volt,ASnow/volt,merongivian/volt,voltrb/volt,thyagobr/volt,voltrb/volt,nightweb/volt,nightweb/volt,CollaboTree/volt,jfahrer/volt,thyagobr/volt,mzdunek93/volt,alexandred/volt,Gaelan/volt,mzdunek93/volt,alexandred/volt,sinventor/volt,thyagobr/volt,ahnbizcad/volt,mzdunek93/volt,bglusman/volt,sinventor/volt,gabrielrios/volt,CollaboTree/volt,orbitalimpact/crystal-meth,dummey/volt,bglusman/volt,CollaboTree/volt,bglusman/volt,gabrielrios/volt,voltrb/volt,orbitalimpact/crystal-meth,askl56/volt,ASnow/volt,gabrielrios/volt,nightweb/volt,jfahrer/volt,dummey/volt