chore: return notFound when disk isn't attached

https://github.com/kubernetes-sigs/vsphere-csi-driver/blob/5a645a4b2fe29a52bba3305365c5918d049f1cf0/pkg/csi/service/osutils/linux_os_utils.go#L870

Author: guilhem

internal/driver/nodeserver_helpers.go

@@ -179,7 +179,7 @@ func (ns *NodeServer) findDevicePath(ctx context.Context, key linodevolumes.Lino
 
 	// If no device path is found, return an error.
 	if devicePath == "" {
-		return "", errInternal("Unable to find device path out of attempted paths: %v", devicePaths)
+		return "", errNotFound("Unable to find device path out of attempted paths: %v", devicePaths)
 	}
 
 	// If a device path is found, return it.

internal/driver/nodeserver_helpers_test.go

@@ -225,7 +225,7 @@ func TestNodeServer_findDevicePath(t *testing.T) {
 				dUtils.EXPECT().VerifyDevicePath(gomock.Any()).Return("", nil)
 			},
 			wantDevicePath: "",
-			wantErr:        errInternal("Unable to find device path out of attempted paths: [some/path]"),
+			wantErr:        errNotFound("Unable to find device path out of attempted paths: [some/path]"),
 		},
 		{
 			name: "Success",