feat: Add Lua cataloger (#2613)

Signed-off-by: Laurent Goderre <laurent.goderre@docker.com>

syft/pkg/type.go

@@ -38,6 +38,7 @@ const (
 	PortagePkg              Type = "portage"
 	PythonPkg               Type = "python"
 	Rpkg                    Type = "R-package"
+	LuaRocksPkg             Type = "lua-rocks"
 	RpmPkg                  Type = "rpm"
 	RustPkg                 Type = "rust-crate"
 	SwiftPkg                Type = "swift"
@@ -73,6 +74,7 @@ var AllPkgs = []Type{
 	PortagePkg,
 	PythonPkg,
 	Rpkg,
+	LuaRocksPkg,
 	RpmPkg,
 	RustPkg,
 	SwiftPkg,
@@ -131,6 +133,8 @@ func (t Type) PackageURLType() string {
 		return packageurl.TypeNPM
 	case Rpkg:
 		return packageurl.TypeCran
+	case LuaRocksPkg:
+		return packageurl.TypeLuaRocks
 	case RpmPkg:
 		return packageurl.TypeRPM
 	case RustPkg:
@@ -165,6 +169,8 @@ func TypeByName(name string) Type {
 		return DebPkg
 	case packageurl.TypeRPM:
 		return RpmPkg
+	case packageurl.TypeLuaRocks:
+		return LuaRocksPkg
 	case "alpm":
 		return AlpmPkg
 	case packageurl.TypeAlpine, "alpine":