Fix boto lib config
Fix boto lib config

* boto lib configuration expects string parameters

Change-Id: I25098c7229adbaa2cfa025c9230ed7efbb12b5af

openstack/tempest,NexusIS/tempest,afaheem88/tempest_neutron,vedujoshi/os_tempest,cloudbase/lis-tempest,rzarzynski/tempest,alinbalutoiu/tempest,manasi24/jiocloud-tempest-qatempest,JioCloud/tempest,Mirantis/tempest,rakeshmi/tempest,citrix-openstack-build/tempest,xbezdick/tempest,neerja28/Tempest,eggmaster/tempest,pczerkas/tempest,flyingfish007/tempest,varunarya10/tempest,vmahuli/tempest,afaheem88/tempest_neutron,Juniper/tempest,bigswitch/tempest,cisco-openstack/tempest,rzarzynski/tempest,pczerkas/tempest,pandeyop/tempest,vmahuli/tempest,nunogt/tempest,izadorozhna/tempest,BeenzSyed/tempest,bigswitch/tempest,neerja28/Tempest,CiscoSystems/tempest,queria/my-tempest,akash1808/tempest,ntymtsiv/tempest,pandeyop/tempest,masayukig/tempest,Vaidyanath/tempest,Juraci/tempest,danielmellado/tempest,varunarya10/tempest,redhat-cip/tempest,roopali8/tempest,vedujoshi/tempest,dkalashnik/tempest,zsoltdudas/lis-tempest,openstack/tempest,hayderimran7/tempest,FujitsuEnablingSoftwareTechnologyGmbH/tempest,roopali8/tempest,itskewpie/tempest,rakeshmi/tempest,citrix-openstack/build-tempest,armando-migliaccio/tempest,vedujoshi/os_tempest,masayukig/tempest,Vaidyanath/tempest,NexusIS/tempest,manasi24/tempest,hayderimran7/tempest,hpcloud-mon/tempest,tudorvio/tempest,jaspreetw/tempest,zsoltdudas/lis-tempest,ebagdasa/tempest,LIS/lis-tempest,citrix-openstack-build/tempest,sebrandon1/tempest,flyingfish007/tempest,cloudbase/lis-tempest,CiscoSystems/tempest,izadorozhna/tempest,adkerr/tempest,redhat-cip/tempest,vedujoshi/tempest,ebagdasa/tempest,manasi24/jiocloud-tempest-qatempest,manasi24/tempest,alinbalutoiu/tempest,queria/my-tempest,Lilywei123/tempest,Tesora/tesora-tempest,afaheem88/tempest,cisco-openstack/tempest,adkerr/tempest,Juniper/tempest,itskewpie/tempest,Tesora/tesora-tempest,Juraci/tempest,tonyli71/tempest,xbezdick/tempest,JioCloud/tempest,sebrandon1/tempest,LIS/lis-tempest,Lilywei123/tempest,armando-migliaccio/tempest,danielmellado/tempest,FujitsuEnablingSoftwareTechnologyGmbH/tempest,jamielennox/tempest,nunogt/tempest,Mirantis/tempest,afaheem88/tempest,hpcloud-mon/tempest,akash1808/tempest,citrix-openstack/build-tempest,dkalashnik/tempest,BeenzSyed/tempest,yamt/tempest,ntymtsiv/tempest,tonyli71/tempest,tudorvio/tempest,jamielennox/tempest,jaspreetw/tempest,yamt/tempest,eggmaster/tempest