Go 1.17 requires golang.org/x/sys a76c4d0a0096537dc565908b53073460d96c8539 (May 8,
2021) or later, see https://github.com/golang/go/issues/45702. While this seems
to affect macOS only, let's update to the latest version.
full diff: d19ff857e8...63515b42dc
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
We can do that now as we're no longer carrying archive/tar.
Note that latest vndr removes vendor/ subdir so we don't have to,
thus the change in hack/validate/vendor.
While at it, re-run a new vndr version to make sure everything
that should be there is.
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
