increase valgrind test timeout to 2 hours
increase valgrind test timeout to 2 hours

jmikola/mongo-c-driver,rcsanchez97/mongo-c-driver,mongodb/mongo-c-driver,beingmeta/mongo-c-driver,rcsanchez97/mongo-c-driver,rcsanchez97/mongo-c-driver,jmikola/mongo-c-driver,mongodb/mongo-c-driver,jmikola/mongo-c-driver,mongodb/mongo-c-driver,derickr/mongo-c-driver,acmorrow/mongo-c-driver,derickr/mongo-c-driver,acmorrow/mongo-c-driver,mongodb/mongo-c-driver,derickr/mongo-c-driver,jmikola/mongo-c-driver,acmorrow/mongo-c-driver,jmikola/mongo-c-driver,derickr/mongo-c-driver,derickr/mongo-c-driver,beingmeta/mongo-c-driver,beingmeta/mongo-c-driver,acmorrow/mongo-c-driver,acmorrow/mongo-c-driver,jmikola/mongo-c-driver,beingmeta/mongo-c-driver,rcsanchez97/mongo-c-driver,derickr/mongo-c-driver,mongodb/mongo-c-driver,beingmeta/mongo-c-driver,mongodb/mongo-c-driver,derickr/mongo-c-driver,jmikola/mongo-c-driver,beingmeta/mongo-c-driver,rcsanchez97/mongo-c-driver,acmorrow/mongo-c-driver,beingmeta/mongo-c-driver,rcsanchez97/mongo-c-driver,acmorrow/mongo-c-driver,beingmeta/mongo-c-driver,rcsanchez97/mongo-c-driver,mongodb/mongo-c-driver