[Performance] Phase A counters and Phase B benchmark: compositor deadlines, per-system CPU time, GPU pass timer, hitches, recorder, runtime stats switch, PerfBench - #53

The action 'Run renderer tests (non-async suites)' has timed out after 60 minutes.

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, actions/setup-python@v5. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/