perf(es/renamer): Modify parallel renaming threshold

[kdy1]

Description:

Related issue:

• Known performance issues #9601

[changeset-bot]

⚠️ No Changeset found

Latest commit: 2d2c611

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[codspeed-hq]

CodSpeed Performance Report

Merging #9706 will not alter performance

_{Comparing kdy1:conc (2d2c611) with main (97298c4)}

Summary

✅ 194 untouched benchmarks