fix(workflows): skip maintainer gate for maintainer-authored PRs - #292

Please verify that the necessary features are enabled: Advanced Security must be enabled for this repository to use code scanning. - https://docs.github.com/rest

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/