Use logger Interface in runtime configuration

Signed-off-by: Evan Lezar <elezar@nvidia.com>

pkg/config/engine/containerd/containerd.go

@@ -17,6 +17,7 @@
 package containerd
 
 import (
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/logger"
 	"github.com/NVIDIA/nvidia-container-toolkit/pkg/config/engine"
 	"github.com/pelletier/go-toml"
 )
@@ -36,5 +37,9 @@ func New(opts ...Option) (engine.Interface, error) {
 		opt(b)
 	}
 
+	if b.logger == nil {
+		b.logger = logger.New()
+	}
+
 	return b.build()
 }