travis: fix secure token
travis: fix secure token

I made a mistake of generating tokens on my repo
efiop/dvc, so it was not correct for official repo
and thus travis couldn't upload packages.

Signed-off-by: Ruslan Kuprieiev <f6538312ce47017d734b1357aabc970ebf896e32@gmail.com>

ophiry/dvc,efiop/dvc,dmpetrov/dataversioncontrol,dataversioncontrol/dvc,efiop/dvc,ophiry/dvc,dataversioncontrol/dvc,dmpetrov/dataversioncontrol