provision/docker: fix connection leaks in healer
provision/docker: fix connection leaks in healer

tsuru/tsuru,kgrvamsi/tsuru,ArxdSilva/tsuru,tsuru/tsuru,gciotta/tsuru,firebitsbr/tsuru,firebitsbr/tsuru,cezarsa/tsuru,gciotta/tsuru,jblancett/tsuru,ArxdSilva/tsuru,ArxdSilva/tsuru,mderaldo/tsuru,tuxmonteiro/tsuru,cgvarela/tsuru,tsuru/tsuru,gciotta/tsuru,kgrvamsi/tsuru,kgrvamsi/tsuru,hcxiong/tsuru,guilhermebr/tsuru,ggarnier/tsuru,cgvarela/tsuru,RichardKnop/tsuru,ArxdSilva/tsuru,Endika/tsuru,mderaldo/tsuru,gwmoura/tsuru,cezarsa/tsuru,jblancett/tsuru,firebitsbr/tsuru,hcxiong/tsuru,guilhermebr/tsuru,cezarsa/tsuru,4eek/tsuru,cgvarela/tsuru,gwmoura/tsuru,Endika/tsuru,tuxmonteiro/tsuru,ggarnier/tsuru,RichardKnop/tsuru,mderaldo/tsuru,hcxiong/tsuru,guilhermebr/tsuru,ggarnier/tsuru,tuxmonteiro/tsuru,RichardKnop/tsuru,cezarsa/tsuru,4eek/tsuru,ggarnier/tsuru,guilhermebr/tsuru,jblancett/tsuru,tsuru/tsuru,4eek/tsuru,gwmoura/tsuru,Endika/tsuru