Fix some test failures / flakiness

[Leiyks]

Description

Reviewer checklist

• Test coverage seems ok.
• Appropriate labels assigned.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 61.75%. Comparing base (8bef9c8) to head (b9078c6).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3376      +/-   ##
==========================================
- Coverage   61.90%   61.75%   -0.15%     
==========================================
  Files         141      141              
  Lines       12481    12481              
  Branches     1630     1630              
==========================================
- Hits         7726     7708      -18     
- Misses       4033     4051      +18     
  Partials      722      722              

see 3 files with indirect coverage changes

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[pr-commenter]

Benchmarks [ tracer ]

Benchmark execution time: 2025-09-01 15:23:16

Comparing candidate commit af9bc07 in PR branch leiyks/fix-ci-tests with baseline commit 8119103 in branch master.

Found 1 performance improvements and 1 performance regressions! Performance is the same for 190 metrics, 2 unstable metrics.

scenario:MessagePackSerializationBench/benchMessagePackSerialization

• 🟥 execution_time [+3.087µs; +4.713µs] or [+3.007%; +4.590%]

scenario:TraceSerializationBench/benchSerializeTrace

• 🟩 execution_time [-37.440µs; -25.960µs] or [-8.013%; -5.556%]