third_party: fix header alignment of version in manifest
third_party: fix header alignment of version in manifest

The version column was shifted with the addition of update-ssh-keys, but the
header wasn't updated accordingly.

trnubo/ignition,mischief/ignition,coreos/ignition,jonboulle/ignition,AlexNPavel/ignition,jonboulle/ignition,trnubo/ignition,mischief/ignition,higebu/ignition,ajeddeloh/ignition,marineam/ignition,crawford/ignition,coreos/ignition,AlexNPavel/ignition,dgonyeo/ignition,jonboulle/ignition,marineam/ignition,ajeddeloh/ignition,marineam/ignition,dgonyeo/ignition,ajeddeloh/ignition,dgonyeo/ignition,coreos/ignition,crawford/ignition,AlexNPavel/ignition,higebu/ignition,mischief/ignition,trnubo/ignition,higebu/ignition