fix: Ensure error location by custom parsing

The native JSON.parse does not always provide the error location
at the end of the error message. These two invalid inputs either
include or not include the error location and it is different
with Node.js 18 and Node.js 20:

  { "foo": \"baz }
  { "foo": baz }

If the locatoin is missing, let us parse the input once more
by the custom parser, which always provides the error location.

src/native-parser.js

@@ -155,6 +155,10 @@ function parseNative (input, reviver) {
   try {
     return JSON.parse(input, reviver)
   } catch (error) {
-    throw improveNativeError(input, error)
+    const newError = improveNativeError(input, error)
+    if (error.location) throw newError
+    // If the native error didn't contain location, parse once more
+    // by the custom parser, which always provides the error location.
+    return parseCustom (input, reviver)
   }
 }