rabbitstack
chore: Use standard library atomic bool
What is the purpose of this PR / why it is needed?
Deprecate the bespoke util/atomic package in favor of the standard library atomic package.
What type of change does this PR introduce?
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/kind <>lines:
/kind feature (non-breaking change which adds functionality)
/kind bug-fix (non-breaking change which fixes an issue)
/kind refactor (non-breaking change that restructures the code, while not changing the original functionality)
/kind breaking (fix or feature that would cause existing functionality to not work as expected
/kind cleanup
/kind improvement
/kind design
/kind documentation
/kind other (change that doesn't pertain to any of the above categories)
Any specific area of the project related to this PR?
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/area <>lines:
/area instrumentation
/area telemetry
/area rule-engine
/area filters
/area yara
/area event
/area captures
/area alertsenders
/area outputs
/area rules
/area filaments
/area config
/area cli
/area tests
/area ci
/area build
/area docs
/area deps
/area other
