mark RegExp.escape as shipped from FF134

https://github.com/tc39/proposal-regex-escaping
https://bugzilla.mozilla.org/show_bug.cgi?id=1918235

Author: zloirock

CHANGELOG.md

@@ -7,6 +7,7 @@
   - [`Promise.try`](https://github.com/tc39/proposal-promise-try) marked as shipped from Safari 18.2
   - [`Math.f16round` and `DataView.prototype.{ getFloat16, setFloat16 }`](https://github.com/tc39/proposal-float16array) marked as shipped from Safari 18.2
   - [`Uint8Array` to / from base64 and hex proposal](https://github.com/tc39/proposal-arraybuffer-base64) methods marked as shipped from Safari 18.2
+  - [`RegExp.escape`](https://github.com/tc39/proposal-regex-escaping) marked as shipped [from FF134](https://bugzilla.mozilla.org/show_bug.cgi?id=1918235)
   - [`Promise.try`](https://github.com/tc39/proposal-promise-try) marked as shipped from FF134
   - [`Symbol.dispose`, `Symbol.asyncDispose` and `Iterator.prototype[@@dispose]`](https://github.com/tc39/proposal-explicit-resource-management) marked as shipped from FF134
   - Fixed NodeJS version where `URL.parse` was added - 22.1 instead of 22.0

packages/core-js-compat/src/data.mjs

@@ -2453,6 +2453,7 @@ export const data = {
   },
   'esnext.regexp.escape': {
     bun: '1.1.22',
+    firefox: '134',
     safari: '18.2',
   },
   'esnext.set.add-all': {