when checking for test leftovers catch dead server connections and abort tests cleanly (#7283)
when checking for test leftovers catch dead server connections and abort tests cleanly (#7283)


arangodb/arangodb,graetzer/arangodb,Simran-B/arangodb,Simran-B/arangodb,fceller/arangodb,fceller/arangodb,graetzer/arangodb,graetzer/arangodb,arangodb/arangodb,wiltonlazary/arangodb,fceller/arangodb,graetzer/arangodb,arangodb/arangodb,graetzer/arangodb,graetzer/arangodb,wiltonlazary/arangodb,graetzer/arangodb,arangodb/arangodb,Simran-B/arangodb,fceller/arangodb,fceller/arangodb,arangodb/arangodb,graetzer/arangodb,wiltonlazary/arangodb,graetzer/arangodb,graetzer/arangodb,Simran-B/arangodb,fceller/arangodb,graetzer/arangodb,fceller/arangodb,wiltonlazary/arangodb,graetzer/arangodb,fceller/arangodb,wiltonlazary/arangodb,wiltonlazary/arangodb,Simran-B/arangodb,Simran-B/arangodb,arangodb/arangodb,graetzer/arangodb,Simran-B/arangodb,arangodb/arangodb,fceller/arangodb,arangodb/arangodb,wiltonlazary/arangodb,wiltonlazary/arangodb,Simran-B/arangodb,Simran-B/arangodb,fceller/arangodb,graetzer/arangodb,Simran-B/arangodb