[ci] better dev deploy messages (#9022)
[ci] better dev deploy messages (#9022)

A KeyError's __str__ is just the key that failed. This prints the traceback and the full
error message. It is far more useful.
hail-is/hail,danking/hail,danking/hail,danking/hail,danking/hail,hail-is/hail,danking/hail,cseed/hail,hail-is/hail,hail-is/hail,hail-is/hail,cseed/hail,danking/hail,hail-is/hail,cseed/hail,danking/hail,cseed/hail,cseed/hail,hail-is/hail,cseed/hail,cseed/hail,danking/hail,hail-is/hail,cseed/hail