Compute `Version` byte correctly

[roynalnaruto]

This issue is to track the behaviour of

scroll/coordinator/internal/utils/version.go

Lines 13 to 38 in 9c8782f

	// version get the version for the chain instance
	//
	// TODO: This is not foolproof and does not cover all scenarios.
	func Version(hardForkName string, ValidiumMode bool) (uint8, error) {
	var domain, stfVersion uint8
	if ValidiumMode {
	domain = 1
	stfVersion = 1
	} else {
	domain = 0
	switch canonicalName := strings.ToLower(hardForkName); canonicalName {
	case "euclidv1":
	stfVersion = 6
	case "euclidv2":
	stfVersion = 7
	case "feynman":
	stfVersion = 8
	default:
	return 0, errors.New("unknown fork name " + canonicalName)
	}
	}
	return (domain << DomainOffset) + stfVersion, nil
	}

post merging #1737

• Galileo support must be added in func Version itself
• For future Validium-specific upgrades, the if ValidiumMode block is insufficient