fix(otelmetrics): return complete query results and honor Retry-After - #789

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, actions/setup-go@6edd4406fa81c3da01a34fa6f6343087c207a568, hashicorp/setup-terraform@b9cd54a3c349d3f38e8881555d616ced269862dd. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/