Update crowdstrike-falcon-foundry to v1.6.0 (#4338)

plugins/external.json

@@ -555,7 +555,7 @@
   {
     "name": "crowdstrike-falcon-foundry",
     "description": "AI coding assistant skills for building CrowdStrike Falcon Foundry apps: scaffolding, deployment, and best practices for API integrations, collections, functions, UI extensions, UI pages, and workflows.",
-    "version": "1.5.0",
+    "version": "1.6.0",
     "author": {
       "name": "CrowdStrike",
       "url": "https://www.crowdstrike.com/"
@@ -572,7 +572,8 @@
     "source": {
       "source": "github",
       "repo": "CrowdStrike/foundry-skills",
-      "sha": "d9af175fe2b86836b431ebdb7e088957e6c7820d"
+      "ref": "v1.6.0",
+      "sha": "61572f38592d47c747e2595182459781bf0bc679"
     }
   },
   {