Bumping System Agent version to v0.2.8.

Signed-off-by: Jamie Phillips <jamie.phillips@suse.com>

go.mod

@@ -49,7 +49,7 @@ require (
 	github.com/pkg/errors v0.9.1
 	github.com/prometheus/client_golang v1.11.1 // indirect
 	github.com/rancher/remotedialer v0.2.6-0.20201012155453-8b1b7bb7d05f
-	github.com/rancher/system-agent v0.2.7
+	github.com/rancher/system-agent v0.2.8
 	github.com/sirupsen/logrus v1.8.1
 	github.com/stretchr/testify v1.7.0 // indirect
 	github.com/urfave/cli v1.22.5

go.sum

@@ -588,8 +588,8 @@ github.com/rancher/lasso v0.0.0-20210408231703-9ddd9378d08d h1:vfjPEF6M7Jf1/zK1x
 github.com/rancher/lasso v0.0.0-20210408231703-9ddd9378d08d/go.mod h1:OhBBBO1pBwYp0hacWdnvSGOj+XE9yMLOLnaypIlic18=
 github.com/rancher/remotedialer v0.2.6-0.20201012155453-8b1b7bb7d05f h1:FIZcYXY/dl18TN1UdA18PRbTB7UfmylSVjpD/4gmF34=
 github.com/rancher/remotedialer v0.2.6-0.20201012155453-8b1b7bb7d05f/go.mod h1:dbzn9NF1JWbGEHL6Q/1KG4KFROILiY/j6wmfF1Np3fk=
-github.com/rancher/system-agent v0.2.7 h1:R2M33BkT9LB+vf5Q8D0XvrVlgbv419UMOh1ABKC+lRk=
-github.com/rancher/system-agent v0.2.7/go.mod h1:m0YpDXKOalr3PEM9xZWdrASA2CznUIzFfPnwKYp6Mtk=
+github.com/rancher/system-agent v0.2.8 h1:kf1cwfhdafg3j4Tum1AtdNuANDUoAHvovLoG4kwNhT8=
+github.com/rancher/system-agent v0.2.8/go.mod h1:m0YpDXKOalr3PEM9xZWdrASA2CznUIzFfPnwKYp6Mtk=
 github.com/rancher/wharfie v0.4.3 h1:Ezn78XQLvfFb02NYG7IlsnCNsQo1upLYoIxAidQJans=
 github.com/rancher/wharfie v0.4.3/go.mod h1:cb8mSczpmw7ItbPF3K1W7crWuJLVdyV49sZZuaY4BS8=
 github.com/rancher/wrangler v0.8.0 h1:jGWr7ES0KwZU/8zB6lte0z4QB7hFcspaXPTvGmrvHok=