fix: recreate regex to prevent regex with global flags

Author: timdeschryver

src/matches.ts

@@ -56,7 +56,7 @@ function matches(
   if (matcher instanceof Function) {
     return matcher(normalizedText, node)
   } else if (matcher instanceof RegExp) {
-    return matcher.test(normalizedText)
+    return new RegExp(matcher).test(normalizedText)
   } else {
     return normalizedText === String(matcher)
   }