bump some crates to resolve cargo audit

Crate:     openssl
Version:   0.10.68
Title:     ssl::select_next_proto use after free
Date:      2025-02-02
ID:        RUSTSEC-2025-0004
URL:       https://rustsec.org/advisories/RUSTSEC-2025-0004
Solution:  Upgrade to >=0.10.70

Crate:     openssl
Version:   0.10.68
Title:     Use-After-Free in `Md::fetch` and `Cipher::fetch`
Date:      2025-04-04
ID:        RUSTSEC-2025-0022
URL:       https://rustsec.org/advisories/RUSTSEC-2025-0022
Solution:  Upgrade to >=0.10.72

Crate:     tokio
Version:   1.39.2
Warning:   unsound
Title:     Broadcast channel calls clone in parallel, but does not require `Sync`
Date:      2025-04-07
ID:        RUSTSEC-2025-0023
URL:       https://rustsec.org/advisories/RUSTSEC-2025-0023

Author: klensy