fix: mention URL JSON path in kurtosis run -h (#1676)

## Description:
I noticed that `kurtosis run -h` does not mention the ability to support
a URL for the --args-file. This PR adds a few words to highlight this
support

## Is this change user facing?
YES
<!-- If yes, please add the "user facing" label to the PR -->
<!-- If yes, don't forget to include docs changes where relevant -->

## References (if applicable):
#1651

---------

Co-authored-by: Gyanendra Mishra <anomaly.the@gmail.com>

cli/cli/commands/run/run.go

@@ -194,7 +194,7 @@ var StarlarkRunCmd = &engine_consuming_kurtosis_command.EngineConsumingKurtosisC
 		},
 		{
 			Key:     packageArgsFileFlagKey,
-			Usage:   "The file (JSON/YAML) will be used as arguments passed to the Kurtosis Package",
+			Usage:   "The file (JSON/YAML) that will be used to pass in arguments to the Kurtosis package. Can be a URL or file path.",
 			Type:    flags.FlagType_String,
 			Default: packageArgsFileDefaultValue,
 		},