PGO: Update default.pgo from benchmarks https://github.com/elastic/apm-server/actions/runs/18147043265/attempts/1. (#18860)

Co-authored-by: obltmachine <150269514+obltmachine@users.noreply.github.com>
Co-authored-by: Francesco Gualazzi <inge4pres@users.noreply.github.com>

Author: 3 people