Bump org.jetbrains.kotlin:kotlin-stdlib from 1.9.22 to 2.4.20 - #110

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11, actions/setup-java@387ac29b308b003ca37ba93a6cab5eb57c8f5f93. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/