Revert "Test against release Ark"

This reverts commit 901b38b.

Author: lionel-

extensions/positron-r/package.json

@@ -966,7 +966,7 @@
   },
   "positron": {
     "binaryDependencies": {
-      "ark": "posit-dev/ark@0.1.201"
+      "ark": "0.1.201"
     },
     "minimumRVersion": "4.2.0",
     "minimumRenvVersion": "1.0.9"