[Enhancement] Set event.kind to alert on AWS WAF events.

[w0rk3r]

Proposed commit message

Set `event.kind` to `alert` on AWS WAF events.

Summary

This sets event.kind to alert in AWS WAF events, so we can use our default alert promotion detection rule for these events.

Checklist

• I have reviewed tips for building integrations and this pull request is aligned with them.
• I have verified that all data streams collect metrics or logs.
• I have added an entry to my package's changelog.yml file.
• I have verified that Kibana version constraints are current according to guidelines.
• I have verified that any added dashboard complies with Kibana's Dashboard good practices

[elasticmachine]

Pinging @elastic/security-service-integrations (Team:Security-Service Integrations)

[elastic-vault-github-plugin-prod]

🚀 Benchmarks report

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[chemamartinez]

LGTM, just a small nit, it would be nice to run system tests so the sample event in docs gets updated as well.

[elasticmachine]

💚 Build Succeeded

• Buildkite Build
• Commit: 3f1536f

History

• 💚 Build #35411 succeeded b4118fd

cc @w0rk3r

[elastic-vault-github-plugin-prod]

Package aws - 5.1.0 containing this change is available at https://epr.elastic.co/package/aws/5.1.0/