[profiling] Turn off slow fuzz tests for miri

[taegyunkim]

What does this PR do?

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Motivation

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[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 69.62%. Comparing base (a19524f) to head (125d1cd).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #489   +/-   ##
=======================================
  Coverage   69.61%   69.62%           
=======================================
  Files         199      199           
  Lines       26631    26633    +2     
=======================================
+ Hits        18540    18542    +2     
  Misses       8091     8091           

Components	Coverage Δ
crashtracker	17.17% <ø> (ø)
datadog-alloc	98.76% <ø> (ø)
data-pipeline	51.30% <ø> (ø)
data-pipeline-ffi	0.00% <ø> (ø)
ddcommon	85.97% <ø> (ø)
ddcommon-ffi	74.15% <ø> (ø)
ddtelemetry	56.37% <ø> (ø)
ipc	84.66% <ø> (ø)
profiling	79.14% <100.00%> (+<0.01%)	⬆️
profiling-ffi	59.53% <ø> (ø)
serverless	0.00% <ø> (ø)
sidecar	36.26% <ø> (ø)
sidecar-ffi	0.00% <ø> (ø)
spawn-worker	54.98% <ø> (ø)
trace-mini-agent	69.36% <ø> (ø)
trace-normalization	97.79% <ø> (ø)
trace-obfuscation	95.73% <ø> (ø)
trace-protobuf	24.52% <ø> (ø)
trace-utils	90.79% <ø> (ø)