Update dependency jest to v26

Author: renovate-bot

package.json

@@ -34,7 +34,7 @@
   "devDependencies": {
     "@types/jest": "22.1.3",
     "codecov": "3.0.0",
-    "jest": "22.3.0",
+    "jest": "26.0.1",
     "ts-jest": "22.0.4",
     "tslint": "5.9.1",
     "typedoc": "0.9.0",