Skip mixed reality samples temporarily until region overrides are supported (Azure#14131)

Author: benbp

sdk/mixedreality/mixedreality-authentication/package.json

@@ -112,7 +112,7 @@
     "util": "^0.12.1",
     "typedoc": "0.15.2"
   },
-  "//smokeTestConfiguration": {
+  "//sampleConfiguration": {
     "skipFolder": true
   }
 }