remove istanbul

Author: vadim-kharin-codefresh

package.json

@@ -28,7 +28,6 @@
     "eslint-plugin-jsx-a11y": "^5.0.3",
     "eslint-plugin-mocha": "^4.9.0",
     "eslint-plugin-react": "^7.0.1",
-    "istanbul": "^0.4.5",
     "jest": "^29.7.0",
     "mocha": "^8.2.1",
     "rimraf": "^2.6.1",