Update dependency preact-cli to v3.0.1

package.json

@@ -28,7 +28,7 @@
     "jest": "25.1.0",
     "jest-preset-preact": "1.0.0",
     "per-env": "1.0.2",
-    "preact-cli": "3.0.0-rc.7",
+    "preact-cli": "3.0.1",
     "preact-render-spy": "1.3.0",
     "serve": "11.3.0"
   },