### Godot version

4.1.rc.custom_build. c83f912bc

### System information

Ubuntu 22.04 CI

### Issue description

When executing
```
extends Node
func _process(delta):

	var temp_variable35241 = RichTextLabel.new()
	add_child(temp_variable35241)
	temp_variable35241.set_fit_content(true)
	temp_variable35241.parse_bbcode("3188932498")
	temp_variable35241.queue_free()
```
this code freeze project in CI for at least 60 seconds

### Steps to reproduce

Above

### Minimal reproduction project

N/A
Dictionary d;
	for (int i = 0; i < p_expressions.size(); i++) {
		String expression = p_expressions[i];
		Array a;
		Vector<String> parts = expression.split("=", true);
		String key = parts[0];
		if (parts.size() != 2) {
			return d;
		}
		Vector<String> values = parts[1].split(",", false);
#ifdef MODULE_REGEX_ENABLED
		RegEx color = RegEx();
		color.compile("^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})$");
		RegEx nodepath = RegEx();
		nodepath.compile("^\\$");
		RegEx boolean = RegEx();
		boolean.compile("^(true|false)$");
		RegEx decimal = RegEx();
		decimal.compile("^-?^.?\\d+(\\.\\d+?)?$");
		RegEx numerical = RegEx();
		numerical.compile("^\\d+$");
		for (int j = 0; j < values.size(); j++) {
			if (!color.search(values[j]).is_null()) {