Fix linting

Author: KaloyanTanev

eth2util/enr/enr_internal_test.go

@@ -16,7 +16,7 @@ import (
 func TestBackwardsENR(t *testing.T) {
 	random := rand.New(rand.NewSource(time.Now().Unix()))
 	for range 100 {
-		k, err := ecdsa.GenerateKey(k1.S256(), random)
+		k, err := ecdsa.GenerateKey(k1.S256(), random) //nolint:staticcheck // We are using k1.S256() in tests, it's not a security issue.
 		require.NoError(t, err)
 
 		// We expect a bit more utility functions to be implemented in the k1 package in the future

testutil/random.go

@@ -1686,7 +1686,7 @@ func GenerateInsecureK1Key(t *testing.T, seed int) *k1.PrivateKey {
 
 	t.Setenv("GODEBUG", "cryptocustomrand=1")
 	// Add 1 to seed to avoid passing 0 as seed which can trigger infinite loop.
-	k, err := ecdsa.GenerateKey(k1.S256(), constReader(seed+1))
+	k, err := ecdsa.GenerateKey(k1.S256(), constReader(seed+1)) //nolint:staticcheck // We are using k1.S256() in tests, it's not a security issue.
 	require.NoError(t, err)
 
 	//nolint:staticcheck // We are using it in tests in a safely manner in testing.