[osquery:master] 1 new commit by Anadi Sharma:

<https://github.com/osquery/osquery/commit/65db9e7118424b7781b6d07c817fe7501642cc08|65db9e7118424b7781b6d07c817fe7501642cc08>

Fix signed/unsigned mismatch in powershell_events (#8225) - Anadi Sharma