Fix the benchmarks

[zhengyu123]

What does this PR do?:
This is the java-profiler side of fixing for benchmarking.

Motivation:
Enabling benchmarking on PR

Additional Notes:

How to test the change?:
Downstream build still triggered, no regression.

For Datadog employees:

• If this PR touches code that signs or publishes builds or packages, or handles
  credentials of any kind, I've requested a review from @DataDog/security-design-and-guidance.
• This PR doesn't touch any of that.
• JIRA: PROF-11835 Fix the benchmarks

Unsure? Have a question? Request a review!

[pr-commenter]

Benchmarks

Parameters

	Baseline	Candidate
config	baseline	candidate
ddprof	1.31.0	1.32.0-zgu_fix-benchmark-SNAPSHOT

See matching parameters

	Baseline	Candidate
alloc	off	off
cpu	on	on
iterations	5	5
java
memleak	off	off
modes	cpu,wall	cpu,wall
wall	on	on

Summary

Found 0 performance improvements and 0 performance regressions! Performance is the same for 18 metrics, 1 unstable metrics.