Update jest monorepo to v30

Author: renovate[bot]

package.json

@@ -51,7 +51,7 @@
     "babel-core": "6.26.3",
     "babel-eslint": "7.2.3",
     "babel-istanbul": "0.11.0",
-    "babel-jest": "17.0.2",
+    "babel-jest": "30.0.5",
     "babel-plugin-transform-async-to-generator": "6.24.1",
     "babel-polyfill": "6.26.0",
     "babel-preset-es2015": "6.24.1",
@@ -63,7 +63,7 @@
     "eslint-plugin-import": "2.2.0",
     "eslint-plugin-jsx-a11y": "2.2.3",
     "eslint-plugin-react": "6.8.0",
-    "jest": "17.0.3",
+    "jest": "30.0.5",
     "nock": "9.0.2"
   },
   "dependencies": {