### Godot version

v4.0.stable.official [92bee43ad]

### System information

Steam OS Holo, Steam Deck

### Issue description

Using a `[br]` tag at the end of a line in a documentation comment adds an additional space at the beginning of the following line:

![image](https://user-images.githubusercontent.com/857660/236700815-c78a317f-cdf8-4f3c-8489-41f9559ffe6d.png)


### Steps to reproduce

The script below is what I used to generate the image above:

```gdscript
class_name Test
extends Node

## High-level description
##
## First line of detail.[br]
## Second line of detail.
```

Removing the space between `##` and `Second` doesn't change the output.

The only workaround I've found so far is to remove the linebreak after the `[br]` tag, but this makes the documentation comments harder to read in the editor:

```gdscript
class_name Test
extends Node

## High-level description
##
## First line of detail.[br]Second line of detail.
```

### Minimal reproduction project

N/A
while (current.type == GDScriptTokenizer::Token::ERROR) {
		push_error(current.literal);
		current = tokenizer.scan();
	}
	for (Node *n : nodes_in_progress) {
		update_extents(n);
	}
	return previous;
}
bool GDScriptParser::match(GDScriptTokenizer::Token::Type p_token_type) {
	if (!check(p_token_type)) {
		return false;
	}
	advance();
	return true;
}
bool GDScriptParser::check(GDScriptTokenizer::Token::Type p_token_type) const {
	if (p_token_type == GDScriptTokenizer::Token::IDENTIFIER) {
		return current.is_identifier();
	}
	return current.type == p_token_type;
}
bool GDScriptParser::consume(GDScriptTokenizer::Token::Type p_token_type, const String &p_error_message) {
	if (match(p_token_type)) {
		return true;
	}
	push_error(p_error_message);
	return false;
}
bool GDScriptParser::is_at_end() const {