fix: preserve multi-digit GCP region numbers - #1439

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: github/codeql-action/analyze@181d5eefc20863364f96762470ba6f862bdef56b, github/codeql-action/init@181d5eefc20863364f96762470ba6f862bdef56b. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/