voms-proxy: pass user secrets as env variables
voms-proxy: pass user secrets as env variables

* Used to securely read the password and the virtual
  organisation (VO).

tiborsimko/reana-job-controller,reanahub/reana-job-controller,diegodelemos/reana-job-controller,diegodelemos/reana-job-controller,reanahub/reana-job-controller,tiborsimko/reana-job-controller