fix(common): CHECKOUT-4136 Exclude json files no matter where tslint is placed

The exclude pattern is based on the directory where tslint is placed.
If we want to exclude json files regardless of the location of tslint.json
we need to specify a `/` so all files, no matter the location are excluded.

Author: icatalina

index.json

@@ -245,8 +245,7 @@
     },
     "linterOptions": {
         "exclude": [
-            "*.json",
-            "**/*.json"
+            "/**/*.json"
         ]
     }
 }