Potential fix for code scanning alert no. 773: Useless regular-expression character escape (#62)

Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

Author: archoun

core/library/tinymce/jscripts/tiny_mce/plugins/advlink/js/advlink.js

@@ -222,7 +222,7 @@ function parseLink(link) {
 	var template = templates[fnName];
 	if (template) {
 		// Build regexp
-		var variableNames = template.match(new RegExp("'?\\$\\{[A-Za-z0-9\.]*\\}'?", "gi"));
+		var variableNames = template.match(new RegExp("'?\\$\\{[A-Za-z0-9.]*\\}'?", "gi"));
 		var regExp = "\\s*[A-Za-z0-9.]*\\s*\\(";
 		var replaceStr = "";
 		for (var i=0; i<variableNames.length; i++) {