Bump openssl in /rust in the cargo group across 1 directory

Bumps the cargo group with 1 update in the /rust directory: [openssl](https://github.com/sfackler/rust-openssl).


Updates `openssl` from 0.10.66 to 0.10.70
- [Release notes](https://github.com/sfackler/rust-openssl/releases)
- [Commits](rust-openssl/rust-openssl@openssl-v0.10.66...openssl-v0.10.70)

---
updated-dependencies:
- dependency-name: openssl
  dependency-type: direct:production
  dependency-group: cargo
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]