Update gomod and vendor

vendor/github.com/genuinetools/img/client/diskusage.go

@@ -0,0 +1,26 @@
+package client
+
+import (
+	"context"
+	"fmt"
+
+	controlapi "github.com/moby/buildkit/api/services/control"
+)
+
+// DiskUsage returns the disk usage being consumed by the buildkit controller.
+func (c *Client) DiskUsage(ctx context.Context, req *controlapi.DiskUsageRequest) (*controlapi.DiskUsageResponse, error) {
+	if c.controller == nil {
+		// Create the controller.
+		if err := c.createController(); err != nil {
+			return nil, err
+		}
+	}
+
+	// Call diskusage.
+	resp, err := c.controller.DiskUsage(ctx, req)
+	if err != nil {
+		return nil, fmt.Errorf("getting disk usage failed: %v", err)
+	}
+
+	return resp, nil
+}