Reduces bison required version to test it over the buildbots
Reduces bison required version to test it over the buildbots

SpiderLabs/ModSecurity,SpiderLabs/ModSecurity,defanator/ModSecurity,wafbuild/ModSecurity,SpiderLabs/ModSecurity,defanator/ModSecurity,wafbuild/ModSecurity,defanator/ModSecurity,wafbuild/ModSecurity