updated the firefox relase for -webkit-scrollbar selector as it was moved to 153 (#29916)

Author: dletorey

css/selectors/-webkit-scrollbar.json

@@ -12,7 +12,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "152",
+              "version_added": "153",
               "partial_implementation": true,
               "notes": "The `@supports selector(::-webkit-scrollbar)` returns `true` but this pseudo-element cannot be used to style scrollbars. This behavior prevents nested scrollable content from becoming unreachable (see [bug 1977511](https://bugzil.la/1977511))"
             },