chore(deps): update jest monorepo to v26 (#498)

Co-authored-by: Renovate Bot <[email protected]>

Author: renovate[bot]

package.json

@@ -16,15 +16,15 @@
     "@babel/preset-env": "^7.4.5",
     "@babel/preset-react": "^7.0.0",
     "babel-eslint": "^10.0.1",
-    "babel-jest": "^25.0.0",
+    "babel-jest": "^26.0.0",
     "coveralls": "^3.0.4",
     "eslint": "^6.0.0",
     "eslint-config-prettier": "^6.0.0",
     "eslint-plugin-prettier": "^3.1.0",
     "eslint-plugin-react": "^7.13.0",
     "eslint-plugin-react-hooks": "^3.0.0",
     "husky": "^4.0.0",
-    "jest": "^25.0.0",
+    "jest": "^26.0.0",
     "lerna": "^3.15.0",
     "lint-staged": "^10.0.0",
     "prettier": "^1.18.2",