build(deps-dev): bump @types/firefox-webext-browser

Bumps [@types/firefox-webext-browser](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/firefox-webext-browser) from 111.0.1 to 120.0.0.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/firefox-webext-browser)

---
updated-dependencies:
- dependency-name: "@types/firefox-webext-browser"
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -23,7 +23,7 @@
   "devDependencies": {
     "@figma/plugin-typings": "^1.68.0",
     "@types/chrome": "0.0.237",
-    "@types/firefox-webext-browser": "^111.0.1",
+    "@types/firefox-webext-browser": "^120.0.0",
     "@types/offscreencanvas": "^2019.7.0",
     "@types/react": "^18.2.6",
     "@types/react-dom": "^18.2.18",