updating toolkit artifact dependency to 2.1.6

package.json

@@ -29,7 +29,7 @@
   },
   "homepage": "https://github.com/actions/upload-artifact#readme",
   "dependencies": {
-    "@actions/artifact": "^2.1.5",
+    "@actions/artifact": "^2.1.6",
     "@actions/core": "^1.10.1",
     "@actions/github": "^6.0.0",
     "@actions/glob": "^0.3.0",