Stop benchmark report notifications

[abrookins]

Summary

• Disable the benchmark timing report job so it stops creating noisy notifications.
• Keep the named Benchmarks job present as a skipped check instead of removing it outright.

Tests

• git diff --check -- .github/workflows/ci.yml
• ruby -e 'require "yaml"; YAML.load_file(".github/workflows/ci.yml")'
• pre-commit codespell hook

---

Note

Low Risk
CI-only change; no application code, auth, or data paths are affected.

Overview
The Benchmarks workflow job is turned off by adding if: ${{ false }}, so pytest benchmarks and the benchmark-action/github-action-benchmark reporting (artifacts, step summary, gh-pages updates, regression alerts) no longer run or notify.

The job definition is left in place so the check still appears as skipped rather than being removed from the workflow.

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