fix: update require-alt-text rule to ignore commented images (#385)

Author: lumirlumir

src/rules/require-alt-text.js

@@ -22,7 +22,7 @@ import { findOffsets } from "../util.js";
 // Helpers
 //-----------------------------------------------------------------------------
 
-const imgTagPattern = /<img[^>]*>/giu;
+const imgTagPattern = /(?<!<!--[\s\S]*?)<img[^>]*>/giu;
 
 /**
  * Creates a regex to match HTML attributes

tests/rules/require-alt-text.test.js

@@ -44,6 +44,7 @@ ruleTester.run("require-alt-text", rule, {
 		'<img src="image.png" aria-hidden="true"/>',
 		'<img src="image.png" ARIA-HIDDEN="TRUE" />',
 		'<p><img src="image.png" alt="Descriptive text" /></p>',
+		'<!-- <img src="image.png" /> -->',
 	],
 	invalid: [
 		{