chore(deps): update dependency jest to v26

Author: renovate-bot

package.json

@@ -56,7 +56,7 @@
     "eslint-plugin-promise": "4.2.1",
     "eslint-plugin-unicorn": "15.0.1",
     "husky": "4.2.3",
-    "jest": "25.1.0",
+    "jest": "26.4.1",
     "prettier": "1.19.1",
     "rimraf": "3.0.2",
     "ts-jest": "25.2.1",