vendor: update buildkit to c78f696

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>

vendor/github.com/moby/buildkit/client/info.go

@@ -0,0 +1,40 @@
+package client
+
+import (
+	"context"
+
+	controlapi "github.com/moby/buildkit/api/services/control"
+	apitypes "github.com/moby/buildkit/api/types"
+	"github.com/pkg/errors"
+)
+
+type Info struct {
+	BuildkitVersion BuildkitVersion
+}
+
+type BuildkitVersion struct {
+	Package  string
+	Version  string
+	Revision string
+}
+
+func (c *Client) Info(ctx context.Context) (*Info, error) {
+	res, err := c.controlClient().Info(ctx, &controlapi.InfoRequest{})
+	if err != nil {
+		return nil, errors.Wrap(err, "failed to call info")
+	}
+	return &Info{
+		BuildkitVersion: fromAPIBuildkitVersion(res.BuildkitVersion),
+	}, nil
+}
+
+func fromAPIBuildkitVersion(in *apitypes.BuildkitVersion) BuildkitVersion {
+	if in == nil {
+		return BuildkitVersion{}
+	}
+	return BuildkitVersion{
+		Package:  in.Package,
+		Version:  in.Version,
+		Revision: in.Revision,
+	}
+}