### 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
if (p_hint == PROPERTY_HINT_ENUM || p_hint == PROPERTY_HINT_ENUM_SUGGESTION) {
				EditorPropertyTextEnum *editor = memnew(EditorPropertyTextEnum);
				Vector<String> options = p_hint_text.split(",", false);
				editor->setup(options, false, (p_hint == PROPERTY_HINT_ENUM_SUGGESTION));
				return editor;
			} else if (p_hint == PROPERTY_HINT_MULTILINE_TEXT) {
				EditorPropertyMultilineText *editor = memnew(EditorPropertyMultilineText);
				return editor;
			} else if (p_hint == PROPERTY_HINT_EXPRESSION) {
				EditorPropertyMultilineText *editor = memnew(EditorPropertyMultilineText(true));
				return editor;
			} else if (p_hint == PROPERTY_HINT_TYPE_STRING) {
				EditorPropertyClassName *editor = memnew(EditorPropertyClassName);
				editor->setup("Object", p_hint_text);
				return editor;
			} else if (p_hint == PROPERTY_HINT_LOCALE_ID) {
				EditorPropertyLocale *editor = memnew(EditorPropertyLocale);
				editor->setup(p_hint_text);
				return editor;
			} else if (p_hint == PROPERTY_HINT_DIR || p_hint == PROPERTY_HINT_FILE || p_hint == PROPERTY_HINT_SAVE_FILE || p_hint == PROPERTY_HINT_GLOBAL_SAVE_FILE || p_hint == PROPERTY_HINT_GLOBAL_DIR || p_hint == PROPERTY_HINT_GLOBAL_FILE) {
				Vector<String> extensions = p_hint_text.split(",");
				bool global = p_hint == PROPERTY_HINT_GLOBAL_DIR || p_hint == PROPERTY_HINT_GLOBAL_FILE || p_hint == PROPERTY_HINT_GLOBAL_SAVE_FILE;
				bool folder = p_hint == PROPERTY_HINT_DIR || p_hint == PROPERTY_HINT_GLOBAL_DIR;
				bool save = p_hint == PROPERTY_HINT_SAVE_FILE || p_hint == PROPERTY_HINT_GLOBAL_SAVE_FILE;
				EditorPropertyPath *editor = memnew(EditorPropertyPath);
				editor->setup(extensions, folder, global);
				if (save) {
					editor->set_save_mode();
				}
				return editor;