Pin dependencies

Author: renovate-bot

package.json

@@ -26,8 +26,8 @@
   "devDependencies": {
     "@types/jest": "24.0.16",
     "@types/node": "12.6.9",
-    "jest": "^25.2.3",
-    "jest-circus": "^25.2.3",
+    "jest": "25.2.3",
+    "jest-circus": "25.2.3",
     "ts-jest": "24.0.2",
     "typescript": "3.5.3"
   }