fix(helm): fix the implicit dependency of TestSetAppVersion test on previous tests, due to helm home,         by explicitly creating a temporary helm directory for the test.
fix(helm): fix the implicit dependency of TestSetAppVersion test on previous tests, due to helm home,
        by explicitly creating a temporary helm directory for the test.

Signed-off-by: Arash Deshmeh <43f13bf9176a6d2ff9d5707b429cefab57b8a40c@ca.ibm.com>

eicnix/helm,fibonacci1729/helm,fibonacci1729/helm,technosophos/deployment-manager,technosophos/deployment-manager,michelleN/deployment-manager,adamreese/deployment-manager,jascott1/helm,jascott1/helm,technosophos/deployment-manager,appscode/helm,SlickNik/helm,adamreese/helm,technosophos/k8s-helm,adamreese/deployment-manager,adamreese/deployment-manager,eicnix/helm,adamreese/helm,michelleN/deployment-manager,michelleN/deployment-manager,SlickNik/helm,adamreese/deployment-manager,appscode/helm,technosophos/deployment-manager,adamreese/deployment-manager,technosophos/k8s-helm,technosophos/deployment-manager,bacongobbler/helm,helm/helm,michelleN/deployment-manager,helm/helm,bacongobbler/helm