Merge pull request #13649 from grafana/update-jest-23-10

updated jest to 23.10

package.json

@@ -80,7 +80,7 @@
     "style-loader": "^0.21.0",
     "systemjs": "0.20.19",
     "systemjs-plugin-css": "^0.1.36",
-    "ts-jest": "^23.1.4",
+    "ts-jest": "^23.10.4",
     "ts-loader": "^5.1.0",
     "tslib": "^1.9.3",
     "tslint": "^5.8.0",