`JsonRpcRequestStruct` incompatible with superstruct `pick` and `omit`

[FrederikBolding]

Following https://github.com/MetaMask/utils/commit/0d68084b8d8f64a59606b6559b901be4db7c0560 the JsonRpcRequestStruct is now incompatible with superstruct functions such as pick and omit. Trying to use them will result in a type error, see https://github.com/MetaMask/snaps/actions/runs/6823234052/job/18556824093 for an example.