Update the informational link (#3703)

contracts/metatx/MinimalForwarder.sol

@@ -57,7 +57,7 @@ contract MinimalForwarder is EIP712 {
         );
 
         // Validate that the relayer has sent enough gas for the call.
-        // See https://ronan.eth.link/blog/ethereum-gas-dangers/
+        // See https://ronan.eth.limo/blog/ethereum-gas-dangers/
         if (gasleft() <= req.gas / 63) {
             // We explicitly trigger invalid opcode to consume all gas and bubble-up the effects, since
             // neither revert or assert consume all gas since Solidity 0.8.0