chore(electron): update template to use latest electron (#2492)

Author: jcesarmobile

electron-template/package.json

@@ -10,7 +10,7 @@
     "electron-is-dev": "^1.1.0"
   },
   "devDependencies": {
-    "electron": "^7.0.0"
+    "electron": "^8.0.0"
   },
   "keywords": [
     "capacitor",