Fixup YAML utils comment

[kousu]

Related: #4167

[kousu]

I'm also only 50% sure I understand this anymore.

ansible-lint/src/ansiblelint/yaml_utils.py

Line 647 in e6df621

# - hexadecimal like "0xF1"; comes tagged as int. Should continue unquoted to continue as an int.

seems to contradict

ansible-lint/src/ansiblelint/yaml_utils.py

Lines 650 to 656 in e6df621

	if (
	self.event.value.startswith("0x")
	and self.event.tag == "tag:yaml.org,2002:int"
	and self.event.implicit[0]
	):
	# hexadecimal
	self.event.tag = "tag:yaml.org,2002:str"

Why isn't it self.event.tag = "tag:yaml.org,2002:int"? Or just not having that line?

The tests are passing so maybe it's okay, but maybe the tests aren't testing hexadecimals fully?