Routing Sample is Broken

[skibitsky]

Hello,

The v3-sdk routing sample doesn't work because the sdk cannot access the pool list on IPFS.

Related issue in the smart-order-router repository:
Uniswap/smart-order-router#581

[jtardioli]

I was having issues with routing sample as well. The current version of @uniswap/sdk-core is at V5 but in the example they are using V3. Once I downgraded all the packages to match the example it is working fine for me