Update packages/system/manifest.yml

Co-authored-by: Ishleen Kaur <102962586+ishleenk17@users.noreply.github.com>

Author: VihasMakwana

packages/system/manifest.yml

@@ -87,7 +87,7 @@ policy_templates:
             show_user: false
             description: >
               When running in unprivileged mode, the `process` and
-              `process_summary` metricsets might emit incomplete metrics
+              `process_summary` datastreams might emit incomplete metrics
               because some metrics require elevated privileges and may be
               missing as a result.