sysutils/beats7: Update to 7.9.3

Changelog for 7.9.3:

• Bugfixes:
  • Affecting all Beats
    • The o365audit input and o365 module now recover from an authentication problem or other fatal errors, instead of terminating.
  • Auditbeat
    • system/socket: Fix a crash due to concurrent map read and write.
  • Filebeat
    • Add field limit check for AWS Cloudtrail flattened fields.
  • Metricbeat
    • Fix remote_write flaky test.
    • Fix panic in Kubernetes autodiscovery caused by storing stateless keystores.
    • Remove redundant dockersock volume mount to avoid problems on Kubernetes deployments that do not use docker as the container runtime.

PR: 250604
Submitted by: Juraj Lutter <juraj@lutter.sk>