Update default file pattern to include mjs and cjs extensions

Author: developit

src/index.js

@@ -42,7 +42,7 @@ async function run(octokit, context, token) {
 
 	const plugin = new SizePlugin({
 		compression: getInput('compression'),
-		pattern: getInput('pattern') || '**/dist/**/*.js',
+		pattern: getInput('pattern') || '**/dist/**/*.{js,mjs,cjs}',
 		exclude: getInput('exclude') || '{**/*.map,**/node_modules/**}',
 		stripHash: stripHash(getInput('strip-hash'))
 	});