Mention cs/assembly-path-injection in the change note

Author: egregius313

csharp/ql/lib/change-notes/2024-03-05-new-commandargs-and-environment-models.md

@@ -1,4 +1,5 @@
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 category: minorAnalysis
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-* THe .NET standard libraries APIs for accessing command line arguments and environment variables have been modeled using the `commandargs` and `environment` threat models.
+* The .NET standard libraries APIs for accessing command line arguments and environment variables have been modeled using the `commandargs` and `environment` threat models.
+* The `cs/assembly-path-injection` query has been modified so that it's sources rely on `ThreatModelFlowSource`. In order to restore results from command line arguments, you should enable the `commandargs` threat model.