Agent2Agent A2A Rust SDK race condition vulnerability

The Agent2Agent A2A Rust SDK versions 0.4.0, 0.4.1, 0.4.2, 0.4.3, and 0.4.4 have a race condition vulnerability. This vulnerability stems from improper handling of the InMemoryTaskStore::update function in the file a2a-server/src/taskstore/inmemory.rs. It may lead to race conditions, and remote...