Armenian letters should be lowercased

[ManyTheFish]

The LowercaseNormalizer is not configurated to lowercase the Armenian characters as we can see below:

charabia/charabia/src/normalizer/lowercase.rs

Lines 28 to 33 in af5d046

	fn should_normalize(&self, token: &Token) -> bool {
	// https://en.wikipedia.org/wiki/Letter_case#Capitalisation
	matches!(token.script, Script::Latin | Script::Cyrillic | Script::Greek | Script::Georgian)
	&& token.lemma.chars().any(char::is_uppercase)
	}
	}

We should activate the LowercaseNormalizer for the Armenian Script.