fix(deps): update dependency ethers to v6

Author: renovate[bot]

package.json

@@ -31,7 +31,7 @@
     "eslint-plugin-react": "^7.31.10",
     "eslint-plugin-react-hooks": "^4.6.0",
     "eslint-plugin-react-native": "^4.0.0",
-    "ethers": "^5.8.0",
+    "ethers": "^6.14.2",
     "express": "^4.21.2",
     "express-session": "^1.18.1",
     "prettier": "^3.5.3",