Fix linea_estimateGas when called with gasPrice set

[fab-10]

Fix for this incorrect response, since baseFee is 7 wei

curl https://rpc.sepolia.linea.build/ \
       -X POST \
       -H "Content-Type: application/json" \
       -d '{"jsonrpc": "2.0","method": "linea_estimateGas","params": [{"from": "0x432C961E222FC3522FD31af85E84C6240fF0b46F","gasPrice":"0x110000000007","gas":"0x21000"}],"id": 53}'
{"jsonrpc":"2.0","id":53,"error":{"code":-32000,"message":"gasPrice is less than the current BaseFee"}}%