RUSTSEC-2024-0372 Memory leak when calling a canister method via `ic_cdk::call`

When a canister method is called via iccdk::call, a new Future CallFuture is created and can be awaited by the caller to get the execution result. Internally, the state of the Future is tracked and stored in a struct called CallFutureState. A bug in the polling implementation of the CallFuture...