chore(deps-dev): add ts-jest

Author: trivikr

package.json

@@ -82,6 +82,7 @@
     "mocha": "^8.0.1",
     "prettier": "2.2.1",
     "puppeteer": "^5.1.0",
+    "ts-jest": "^26.4.1",
     "ts-loader": "^7.0.5",
     "typedoc-plugin-lerna-packages": "^0.3.1",
     "typescript": "~4.1.2",
@@ -118,4 +119,4 @@
     ],
     "**/*.{ts,js,md,json}": "prettier --write"
   }
-}
+}