fix(app): silence the String?-to-Any coercion warning in getAppLanguage on iOS - #2598

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: ./.github/actions/changed-packages, actions/cache@v4, styfle/cancel-workflow-action@ce177499ccf9fd2aded3b0426c97e5434c2e8a73, tj-actions/changed-files@v37. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/