fix(package): update @ledgerhq/web3-subprovider to version 5.4.2

Closes #21

Author: greenkeeper[bot]

package.json

@@ -18,7 +18,7 @@
   },
   "dependencies": {
     "@ledgerhq/hw-transport-u2f": "^4.60.3",
-    "@ledgerhq/web3-subprovider": "^4.60.3",
+    "@ledgerhq/web3-subprovider": "^5.4.2",
     "@vue/web-component-wrapper": "^1.2.0",
     "@walletconnect/browser": "^1.0.0-beta.25",
     "@walletconnect/web3-provider": "^1.0.0-beta.25",