Upgrade mls-rs-codec to 0.5.3

This project was upgraded with external_updater.
Usage: tools/external_updater/updater.sh update external/rust/crates/mls-rs-codec
For more info, check https://cs.android.com/android/platform/superproject/+/main:tools/external_updater/README.md

Test: TreeHugger
Change-Id: Iaec853b9887258ad8d9baf6f7bf4d9cc814b2cee
8 files changed