### Godot version

4.0.beta13 (caacade56)

### System information

Windows 10

### Issue description

Seems like this was missed in #62011 and #70540. `@export_multiline` should also support the PackedStringArray datatype on top of Array[String] and Dictionary, but it doesn't, instead giving the error `"@export_multiline" annotation requires a variable of type "String" but type "PackedStringArray" was given instead.`

### Steps to reproduce

Create a PackedStringArray with the `@export_multiline` annotation.
```gdscript
@export_multiline var npc_dialog: PackedStringArray
```

### Minimal reproduction project

N/A
{ nullptr,                                          &GDScriptParser::parse_binary_operator,      	PREC_FACTOR }, 
		{ nullptr,                                          &GDScriptParser::parse_binary_operator,      	PREC_POWER }, 
		{ nullptr,                                          &GDScriptParser::parse_binary_operator,      	PREC_FACTOR }, 
		{ &GDScriptParser::parse_get_node,                  &GDScriptParser::parse_binary_operator,      	PREC_FACTOR }, 
		
		{ nullptr,                                          &GDScriptParser::parse_assignment,           	PREC_ASSIGNMENT }, 
		{ nullptr,                                          &GDScriptParser::parse_assignment,           	PREC_ASSIGNMENT }, 
		{ nullptr,                                          &GDScriptParser::parse_assignment,           	PREC_ASSIGNMENT }, 
		{ nullptr,                                          &GDScriptParser::parse_assignment,           	PREC_ASSIGNMENT }, 
		{ nullptr,                                          &GDScriptParser::parse_assignment,           	PREC_ASSIGNMENT }, 
		{ nullptr,                                          &GDScriptParser::parse_assignment,           	PREC_ASSIGNMENT }, 
		{ nullptr,                                          &GDScriptParser::parse_assignment,           	PREC_ASSIGNMENT }, 
		{ nullptr,                                          &GDScriptParser::parse_assignment,           	PREC_ASSIGNMENT }, 
		{ nullptr,                                          &GDScriptParser::parse_assignment,           	PREC_ASSIGNMENT }, 
		{ nullptr,                                          &GDScriptParser::parse_assignment,           	PREC_ASSIGNMENT }, 
		{ nullptr,                                          &GDScriptParser::parse_assignment,           	PREC_ASSIGNMENT }, 
		{ nullptr,                                          &GDScriptParser::parse_assignment,           	PREC_ASSIGNMENT }, 
		
		{ nullptr,                                          &GDScriptParser::parse_ternary_operator,     	PREC_TERNARY }, 
		{ nullptr,                                          nullptr,                                        PREC_NONE }, 
		{ nullptr,                                          nullptr,                                        PREC_NONE }, 
		{ nullptr,                                          nullptr,                                        PREC_NONE }, 
		{ nullptr,                                          nullptr,                                        PREC_NONE }, 
		{ nullptr,                                          nullptr,                                        PREC_NONE }, 
		{ nullptr,                                          nullptr,                                        PREC_NONE }, 
		{ nullptr,                                          nullptr,                                        PREC_NONE }, 
		{ nullptr,                                          nullptr,                                        PREC_NONE }, 
		{ nullptr,                                          nullptr,                                        PREC_NONE }, 
		
		{ nullptr,                                          &GDScriptParser::parse_cast,                 	PREC_CAST },