disable http keepalives in builder
disable http keepalives in builder

so that it doesn't hit the same turbine every single time, if behind DNS

[#78880784]

utako/atc,pivotal-devin-fallak/atc,zachgersh/atc,pivotal-devin-fallak/atc,zachgersh/atc,utako/atc,zachgersh/atc,utako/atc,savaki/atc,simonjjones/atc,savaki/atc,pivotal-devin-fallak/atc,simonjjones/atc,savaki/atc,zachgersh/atc,simonjjones/atc