Align tsconfig.build.json with other polkadot-js (#594)

package.json

@@ -34,7 +34,7 @@
   "devDependencies": {
     "@babel/core": "^7.16.7",
     "@babel/runtime": "^7.16.7",
-    "@polkadot/dev": "^0.65.27",
+    "@polkadot/dev": "^0.65.31",
     "@polkadot/x-bundle": "^8.3.1",
     "@types/jest": "^27.4.0",
     "babel-loader": "^8.2.3",