GHSA-mcrf-7hf9-f6q5 Unchecked vector pre-allocation

• crates.io rmpv: < 0.4.2 → fixed in 0.4.2

Affected versions of this crate pre-allocate memory on deserializing raw buffers without checking whether there is sufficient data available. This allows an attacker to do denial-of-service attacks by sending small msgpack messages that allocate gigabytes of memory.