[8.x](backport #40132) feat: replace custom atomic with sync/atomic

[mergify]

Proposed commit message

Go 1.19 added new atomic types. Replace custom atomic types with stdlib atomic package to fully use the race detector, improved lsp hints and support.

Use pointers in sniffer struct to prevent copying the atomic struct and cause a race condition.

Checklist

• My code follows the style guidelines of this project
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have made corresponding change to the default configuration files
• I have added tests that prove my fix is effective or that my feature works
• I have added an entry in CHANGELOG.next.asciidoc or CHANGELOG-developer.next.asciidoc.

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---

This is an automatic backport of pull request #40132 done by [Mergify](https://mergify.com).

[mergify]

Cherry-pick of 296b83b has failed:

On branch mergify/bp/8.x/pr-40132
Your branch is up to date with 'origin/8.x'.

You are currently cherry-picking commit 296b83b6c5.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   filebeat/channel/outlet.go
	modified:   filebeat/input/filestream/internal/input-logfile/harvester_test.go
	modified:   filebeat/input/filestream/internal/input-logfile/store.go
	modified:   filebeat/input/kafka/input.go
	modified:   filebeat/input/log/input.go
	modified:   filebeat/input/v2/input-cursor/store.go
	modified:   filebeat/input/v2/input-stateless/stateless_test.go
	modified:   heartbeat/monitors/factory_test.go
	modified:   heartbeat/monitors/mocks.go
	modified:   heartbeat/monitors/monitor_test.go
	modified:   heartbeat/scheduler/schedjob.go
	modified:   heartbeat/scheduler/schedjob_test.go
	modified:   libbeat/common/acker/acker.go
	deleted:    libbeat/common/atomic/atomic.go
	deleted:    libbeat/common/atomic/atomic32.go
	deleted:    libbeat/common/atomic/atomic64.go
	deleted:    libbeat/common/atomic/atomic_test.go
	modified:   libbeat/idxmgmt/index_support.go
	modified:   libbeat/management/agent.go
	modified:   libbeat/outputs/elasticsearch/client_proxy_test.go
	modified:   libbeat/outputs/logstash/async.go
	modified:   libbeat/processors/add_process_metadata/add_process_metadata.go
	modified:   libbeat/processors/cache/cache.go
	modified:   libbeat/processors/dns/dns.go
	modified:   libbeat/processors/ratelimit/rate_limit.go
	modified:   libbeat/processors/ratelimit/token_bucket.go
	modified:   libbeat/processors/syslog/syslog.go
	modified:   libbeat/publisher/pipeline/client.go
	modified:   libbeat/publisher/pipeline/client_worker_test.go
	modified:   libbeat/publisher/pipeline/controller_test.go
	modified:   libbeat/publisher/pipeline/pipeline.go
	modified:   libbeat/publisher/pipeline/pipeline_test.go
	modified:   libbeat/publisher/pipeline/stress/gen.go
	modified:   libbeat/publisher/pipeline/stress/sig.go
	modified:   libbeat/publisher/testing/connector.go
	modified:   libbeat/tests/integration/framework.go
	modified:   metricbeat/mb/module/runner_group_test.go
	modified:   packetbeat/sniffer/sniffer.go
	modified:   winlogbeat/beater/acker.go
	modified:   winlogbeat/sys/wineventlog/renderer_test.go
	modified:   x-pack/filebeat/input/awss3/metrics_test.go
	modified:   x-pack/filebeat/input/entityanalytics/internal/kvstore/tracker.go
	modified:   x-pack/filebeat/input/entityanalytics/internal/kvstore/tracker_test.go
	modified:   x-pack/filebeat/input/entityanalytics/internal/kvstore/transaction.go
	modified:   x-pack/filebeat/input/gcppubsub/pubsub_test.go
	deleted:    x-pack/filebeat/input/netflow/decoder/atomic/bool.go
	modified:   x-pack/filebeat/input/netflow/decoder/v9/session.go
	modified:   x-pack/heartbeat/monitors/browser/synthexec/execmultiplexer.go
	modified:   x-pack/metricbeat/module/cloudfoundry/v1.go

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   filebeat/inputsource/common/streaming/listener.go

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

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[mergify]

This pull request has not been merged yet. Could you please review and merge it @kruskall? 🙏

[mergify]

This pull request has not been merged yet. Could you please review and merge it @kruskall? 🙏