Update src/parser/warrior/arms/modules/core/Slam.js
Update src/parser/warrior/arms/modules/core/Slam.js

Checking division by 0

Co-Authored-By: matardarix <c2b98743ed61d8bfc459019ca4ba539658bcfc70@viacesi.fr>
sMteX/WoWAnalyzer,WoWAnalyzer/WoWAnalyzer,WoWAnalyzer/WoWAnalyzer,yajinni/WoWAnalyzer,FaideWW/WoWAnalyzer,fyruna/WoWAnalyzer,ronaldpereira/WoWAnalyzer,anom0ly/WoWAnalyzer,yajinni/WoWAnalyzer,yajinni/WoWAnalyzer,Juko8/WoWAnalyzer,anom0ly/WoWAnalyzer,Juko8/WoWAnalyzer,yajinni/WoWAnalyzer,fyruna/WoWAnalyzer,FaideWW/WoWAnalyzer,anom0ly/WoWAnalyzer,ronaldpereira/WoWAnalyzer,FaideWW/WoWAnalyzer,fyruna/WoWAnalyzer,anom0ly/WoWAnalyzer,sMteX/WoWAnalyzer,sMteX/WoWAnalyzer,ronaldpereira/WoWAnalyzer,Juko8/WoWAnalyzer,WoWAnalyzer/WoWAnalyzer