Fix missed version bump

Author: ianschmitz

packages/react-scripts/fixtures/kitchensink/template.json

@@ -2,7 +2,7 @@
   "package": {
     "dependencies": {
       "bootstrap": "4.3.1",
-      "jest": "25.2.7",
+      "jest": "25.5.4",
       "node-sass": "4.12.0",
       "normalize.css": "7.0.0",
       "prop-types": "15.7.2",