Bump source-map-js from 1.2.1 to 1.2.2 in /prototypes/live-timeline - #61

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5, gitleaks/gitleaks-action@dcedce43c6f43de0b836d1fe38946645c9c638dc. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/