Add 101-standard-service-endpoint-storage quickstart sample - #488

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744, step-security/changed-files@3dbe17c78367e7d60f00d78ae6781a35be47b4a1. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/