docs(logger): fix incorrect doc string (#23442)

Co-authored-by: Jeffrey Smith II <jsmith@influxdata.com>

logger/fields.go

@@ -69,7 +69,7 @@ func OperationEventStart() zapcore.Field {
 	return zap.String(OperationEventKey, eventStart)
 }
 
-// OperationEventFinish returns a field for tracking the end of an operation.
+// OperationEventEnd returns a field for tracking the end of an operation.
 func OperationEventEnd() zapcore.Field {
 	return zap.String(OperationEventKey, eventEnd)
 }