There was an RSA private key used for testing included in the old
version. This commit updates it to a version that does not include the
key so that the key is not detected by tools which scan the Consul
binary for private keys.
Commands run:
go get github.com/joyent/triton-go@6801d15b779f042cfd821c8a41ef80fc33af9d47
make update-vendor
