use proper content type for pem file
use proper content type for pem file

gbirchmeier/openid_connect_sample,gbirchmeier/openid_connect_sample,nov/openid_connect_sample,nov/openid_connect_sample,calh/openid_connect_sample,calh/openid_connect_sample,calh/openid_connect_sample,gbirchmeier/openid_connect_sample,nov/openid_connect_sample