Auto-update DiscordSC to version 1.2.2 (commit 253ee0cebd44bf76409e23… - #252

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v3. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/