Update dependency ts-jest to v22.4.1

Author: renovate-bot

package.json

@@ -45,7 +45,7 @@
     "opencollective": "1.0.3",
     "prettier": "1.11.1",
     "rimraf": "2.6.2",
-    "ts-jest": "22.4.0",
+    "ts-jest": "22.4.1",
     "tslint": "5.9.1",
     "typescript": "2.7.2"
   },

yarn.lock

@@ -3614,9 +3614,9 @@ trim-right@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/trim-right/-/trim-right-1.0.1.tgz#cb2e1203067e0c8de1f614094b9fe45704ea6003"
 
-[email protected].0:
-  version "22.4.0"
-  resolved "https://registry.yarnpkg.com/ts-jest/-/ts-jest-22.4.0.tgz#c9d3f9565696e0ad17e658eee96e06822af96bb9"
+[email protected].1:
+  version "22.4.1"
+  resolved "https://registry.yarnpkg.com/ts-jest/-/ts-jest-22.4.1.tgz#69defb2042d689cff9b4244365ef638ecd35f706"
   dependencies:
     babel-core "^6.24.1"
     babel-plugin-istanbul "^4.1.4"