feat(profiling) visualise opcache restarts in the timeline

[realFlowControl]

Description

PROF-10120

Belongs to:

• https://github.com/DataDog/web-ui/pull/167980
• https://github.com/DataDog/profiling-backend/pull/6141

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 73.62%. Comparing base (ba07209) to head (282c842).
Report is 41 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##             master    #2946   +/-   ##
=========================================
  Coverage     73.62%   73.62%           
  Complexity     2529     2529           
=========================================
  Files           109      109           
  Lines         10410    10410           
=========================================
  Hits           7664     7664           
  Misses         2746     2746           

Flag	Coverage Δ
tracer-php	73.62% <ø> (ø)

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[pr-commenter]

Benchmarks [ profiler ]

Benchmark execution time: 2024-11-14 09:23:01

Comparing candidate commit 282c842 in PR branch florian/opcache-restarts with baseline commit ba07209 in branch master.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 27 metrics, 9 unstable metrics.