chore(deps): update pyopenssl requirement from ~=26.3.0 to ~=26.4.0 - #1368

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: jpribyl/action-docker-layer-caching@v0.1.1. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

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