cmd/geth: add support for --dev flag in dumpgenesis (#28463)

Co-authored-by: Felix Lange <fjl@twurst.com>
Co-authored-by: lightclient <lightclient@protonmail.com>

console/console_test.go

@@ -94,7 +94,7 @@ func newTester(t *testing.T, confOverride func(*ethconfig.Config)) *tester {
 		t.Fatalf("failed to create node: %v", err)
 	}
 	ethConf := &ethconfig.Config{
-		Genesis: core.DeveloperGenesisBlock(11_500_000, common.Address{}),
+		Genesis: core.DeveloperGenesisBlock(11_500_000, nil),
 		Miner: miner.Config{
 			Etherbase: common.HexToAddress(testAddress),
 		},