Update workspace Cargo dependency requirements and lockfile after cargo update/upgrade, including rumqttc-next 0.34.0 and MQTT API compatibility adjustments. Verification: - cargo update --verbose - cargo upgrade --verbose - cargo update -p rumqttc-next --precise 0.34.0 --verbose - cargo tree --invert rumqttc-next --locked - cargo metadata --locked --no-deps --format-version 1 - cargo fmt --all --check - cargo check -p rustfs-targets --all-targets --locked - cargo test -p rustfs-targets mqtt --locked - make pre-pr Co-authored-by: heihutu <[email protected]>