ci(benchmarks): disable mangler benchmarks

[overlookmotel]

Related to #11347.

Mangler benchmarks display so much variance that they're pretty useless. Valiant attempts to reduce the variance (#11408, #11409) have not worked, and contributors have been getting confused by the bonkers "Performance regressed 13%" alerts on unrelated PRs.

No one is working on mangler at the moment, so just disable the damn things!

[graphite-app]

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[overlookmotel]

• ci(benchmarks): disable mangler benchmarks #12118 👈 (View in Graphite)
• main

---

How to use the Graphite Merge Queue

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• 0-merge - adds this PR to the back of the merge queue
• hotfix - for urgent hot fixes, skip the queue and merge this PR next

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Please do not merge from GitHub as this will restart CI on PRs being processed by the merge queue.

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[codspeed-hq]

CodSpeed Instrumentation Performance Report

Merging #12118 will not alter performance

_{Comparing 07-07-ci_benchmarks_disable_mangler_benchmarks (8cb5c70) with main (349d395)}

Summary

✅ 34 untouched benchmarks
⁉️ 4 dropped benchmarks

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

Benchmarks breakdown

	Benchmark	BASE	HEAD	Change
⁉️	mangler[RadixUIAdoptionSection.jsx]	14.6 µs	N/A	N/A
⁉️	mangler[binder.ts]	805.3 µs	N/A	N/A
⁉️	mangler[cal.com.tsx]	3.1 ms	N/A	N/A
⁉️	mangler[react.development.js]	283.8 µs	N/A	N/A