chore: update dependency jest to v26

Author: renovate-bot

package.json

@@ -88,7 +88,7 @@
     "eslint-plugin-import": "^2.20.1",
     "eslint-plugin-jest": "^24.0.0",
     "husky": "4.3.0",
-    "jest": "25.1.0",
+    "jest": "26.4.2",
     "lerna": "^3.22.1",
     "lerna-v3": "npm:lerna@3",
     "lint-staged": "10.4.0",