Update jest monorepo

Author: renovate-bot

package.json

@@ -24,14 +24,14 @@
   },
   "devDependencies": {
     "typescript": "^3.9.2",
-    "jest": "^26.0.1",
-    "ts-jest": "^26.0.0",
+    "jest": "^28.0.0",
+    "ts-jest": "^28.0.0",
     "static-type-assert": "^4.0.0",
     "clean-typescript-build": "^0.1.5",
     "tslint": "^6.1.2",
     "cross-env": "^7.0.2",
     "tslint-config-standard": "^9.0.0",
-    "@types/jest": "^25.2.2"
+    "@types/jest": "^27.0.0"
   },
   "main": "index.js",
   "directories": {