IONOS(ci): restore push builds on the per-major dev lanes (HDNEXT-2144) - #311

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: icewind1991/blueprint@00504403f76cb2a09efd0d16793575055e6f63cb, nextcloud/profiler@6a74c915048285b35b8e1cd96c0835a635945044, shivammathur/setup-php@bf6b4fbd49ca58e4608c9c89fba0b8d90bd2a39f. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/