Fix memory leak with sidecar trace sender

[bwoebi]

And set LSAN_OPTIONS=fast_unwind_on_malloc=0 for more complete traces.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.91%. Comparing base (bb96a53) to head (b9fa0f0).

Additional details and impacted files

@@            Coverage Diff            @@
##             master    #2875   +/-   ##
=========================================
  Coverage     80.91%   80.91%           
  Complexity     2526     2526           
=========================================
  Files           146      146           
  Lines         14711    14711           
=========================================
  Hits          11903    11903           
  Misses         2808     2808           

Flag	Coverage Δ
tracer-extension	78.10% <ø> (ø)
tracer-php	82.09% <ø> (ø)

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[pr-commenter]

Benchmarks [ tracer ]

Benchmark execution time: 2024-10-04 17:06:05

Comparing candidate commit b9fa0f0 in PR branch bob/ffi_try_sync_flush with baseline commit bb96a53 in branch master.

Found 2 performance improvements and 3 performance regressions! Performance is the same for 173 metrics, 0 unstable metrics.

scenario:MessagePackSerializationBench/benchMessagePackSerialization

• 🟩 execution_time [-10.452µs; -7.288µs] or [-6.020%; -4.198%]

scenario:MessagePackSerializationBench/benchMessagePackSerialization-opcache

• 🟩 execution_time [-7.385µs; -4.895µs] or [-4.371%; -2.897%]

scenario:PDOBench/benchPDOBaseline

• 🟥 execution_time [+5.445µs; +12.180µs] or [+3.032%; +6.782%]

scenario:PDOBench/benchPDOBaseline-opcache

• 🟥 execution_time [+11.509µs; +15.709µs] or [+6.421%; +8.764%]

scenario:SamplingRuleMatchingBench/benchRegexMatching3

• 🟥 execution_time [+168.595ns; +627.805ns] or [+2.461%; +9.163%]