marking all warnings (#6642)

src/common/ManagedTelemetry/Telemetry/Events/IEvent.cs

@@ -6,6 +6,7 @@ namespace Microsoft.PowerToys.Telemetry.Events
 {
     public interface IEvent
     {
+        [System.Diagnostics.CodeAnalysis.SuppressMessage("Naming", "CA1707:Identifiers should not contain underscores", Justification = "Part of telem, can't adjust")]
         PartA_PrivTags PartA_PrivTags { get; }
     }
 }