fix(deps): update k8s.io/test-infra digest to 39c657f

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

go.mod

@@ -11,7 +11,7 @@ require (
 	github.com/sirupsen/logrus v1.9.0
 	gotest.tools v2.2.0+incompatible
 	k8s.io/apimachinery v0.24.2
-	k8s.io/test-infra v0.0.0-20230116043250-28c7a83d5420
+	k8s.io/test-infra 39c657fdbfe1
 	k8s.io/utils v0.0.0-20221128185143-99ec85e7a448
 	sigs.k8s.io/yaml v1.3.0
 )