fix: Update walletlink-connector to 6.2.8 (#2655)

* Update walletlink-connector to 6.2.5 which has a walletlink update to support addEthereumChain+switchEthereumChain requests

* Update walletlink-connector to 6.2.7

* Update walletlink-connector to 6.2.8

package.json

@@ -72,7 +72,7 @@
     "@web3-react/injected-connector": "^6.0.7",
     "@web3-react/portis-connector": "^6.0.9",
     "@web3-react/walletconnect-connector": "^7.0.2-alpha.0",
-    "@web3-react/walletlink-connector": "^6.2.3",
+    "@web3-react/walletlink-connector": "^6.2.8",
     "ajv": "^6.12.3",
     "array.prototype.flat": "^1.2.4",
     "array.prototype.flatmap": "^1.2.4",