chore: do not transpile *.spec.ts

Author: trivikr

tsconfig.json

@@ -26,7 +26,7 @@
     }
   },
   "include": ["packages/", "lib/"],
-  "exclude": ["node_modules/"],
+  "exclude": ["node_modules/", "**/*.spec.ts"],
   "typedocOptions": {
     "readme": "README.md",
     "mode": "modules",