switch aws infrastructure tests to use gomega
switch aws infrastructure tests to use gomega

Signed-off-by: Michael Maximilien <202c6131ee8b1472f564bb062d6f9213961ca3fd@us.ibm.com>

karafelix/bosh-agent,evanfarrar/bosh-agent,uzzz/bosh-agent,Altoros/bosh-agent,tacgomes/bosh-agent,uzzz/bosh-agent,mattcui/bosh-agent,gu-bin/bosh-agent,pivotal-nader-ziada/bosh-agent,cloudfoundry/bosh-agent,evanfarrar/bosh-agent,karafelix/bosh-agent,Altoros/bosh-agent,jfuerth/bosh-agent,allomov/bosh-agent,alex8023/bosh-agent,mattcui/bosh-agent,tacgomes/bosh-agent,pivotal-nader-ziada/bosh-agent,alex8023/bosh-agent,gu-bin/bosh-agent,Altoros/bosh-agent,pivotal-nader-ziada/bosh-agent,allomov/bosh-agent,tacgomes/bosh-agent,cloudfoundry/bosh-agent,gu-bin/bosh-agent,allomov/bosh-agent,mattcui/bosh-agent,jfuerth/bosh-agent,karafelix/bosh-agent,alex8023/bosh-agent,uzzz/bosh-agent,evanfarrar/bosh-agent