Update dependency ts-jest to v22.4.6 (#154)

This Pull Request updates dependency [ts-jest](https://github.com/kulshekhar/ts-jest) from `v22.4.5` to `v22.4.6`



<details>
<summary>Release Notes</summary>

### [`v22.4.6`](kulshekhar/ts-jest@v22.4.5...v22.4.6)
[Compare Source](kulshekhar/ts-jest@v22.4.5...v22.4.6)


---

</details>




---

This PR has been generated by [Renovate Bot](https://renovatebot.com).

Author: renovate[bot]

package.json

@@ -53,7 +53,7 @@
     "stylelint-config-rational-order": "0.0.2",
     "stylelint-config-recommended": "2.1.0",
     "sugarss": "1.0.1",
-    "ts-jest": "22.4.5",
+    "ts-jest": "22.4.6",
     "typescript": "2.8.3",
     "typescript-eslint-parser": "15.0.0"
   },

yarn.lock

@@ -6023,6 +6023,13 @@ source-map-support@^0.5.0:
     buffer-from "^1.0.0"
     source-map "^0.6.0"
 
+source-map-support@^0.5.5:
+  version "0.5.6"
+  resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.5.6.tgz#4435cee46b1aab62b8e8610ce60f788091c51c13"
+  dependencies:
+    buffer-from "^1.0.0"
+    source-map "^0.6.0"
+
 source-map-url@^0.4.0:
   version "0.4.0"
   resolved "https://registry.yarnpkg.com/source-map-url/-/source-map-url-0.4.0.tgz#3e935d7ddd73631b97659956d55128e87b5084a3"
@@ -6470,9 +6477,9 @@ trough@^1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/trough/-/trough-1.0.2.tgz#7f1663ec55c480139e2de5e486c6aef6cc24a535"
 
-ts-jest@22.4.5:
-  version "22.4.5"
-  resolved "https://registry.yarnpkg.com/ts-jest/-/ts-jest-22.4.5.tgz#b894f273c7208fa21a77e407dbe12d5e54e8ef72"
+ts-jest@22.4.6:
+  version "22.4.6"
+  resolved "https://registry.yarnpkg.com/ts-jest/-/ts-jest-22.4.6.tgz#a5d7f5e8b809626d1f4143209d301287472ec344"
   dependencies:
     babel-core "^6.26.3"
     babel-plugin-istanbul "^4.1.6"
@@ -6483,6 +6490,7 @@ ts-jest@22.4.5:
     jest-config "^22.4.3"
     lodash "^4.17.10"
     pkg-dir "^2.0.0"
+    source-map-support "^0.5.5"
     yargs "^11.0.0"
 
 tunnel-agent@^0.6.0: