eth/catalyst: enable some commented-out testcases (#29073)

Author: cuiweixie

eth/catalyst/api_test.go

@@ -262,11 +262,8 @@ func TestInvalidPayloadTimestamp(t *testing.T) {
 		{0, true},
 		{parent.Time, true},
 		{parent.Time - 1, true},
-
-		// TODO (MariusVanDerWijden) following tests are currently broken,
-		// fixed in upcoming merge-kiln-v2 pr
-		//{parent.Time() + 1, false},
-		//{uint64(time.Now().Unix()) + uint64(time.Minute), false},
+		{parent.Time + 1, false},
+		{uint64(time.Now().Unix()) + uint64(time.Minute), false},
 	}
 
 	for i, test := range tests {