Bump openssl from 0.10.68 to 0.10.70

Bumps [openssl](https://github.com/sfackler/rust-openssl) from 0.10.68 to 0.10.70.
- [Release notes](https://github.com/sfackler/rust-openssl/releases)
- [Commits](rust-openssl/rust-openssl@openssl-v0.10.68...openssl-v0.10.70)

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

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

Author: dependabot[bot]

Cargo.lock

@@ -31,7 +31,7 @@ serde_json = "1.0.132"
 api_client = {tag = "v41.0",  git = "https://github.com/cloud-hypervisor/cloud-hypervisor"  }
 net_util = {tag = "v41.0",  git = "https://github.com/cloud-hypervisor/cloud-hypervisor"  }
 vmm = { tag = "v41.0",  git = "https://github.com/cloud-hypervisor/cloud-hypervisor", features = ["kvm"] }
-openssl = { version = "0.10.68", features = ["vendored"] }
+openssl = { version = "0.10.70", features = ["vendored"] }
 libcgroups = { version = "0.4.1", default-features = false, features = ["v2",] }
 libcontainer = { version = "0.4.1", default-features = false, features = [ "v2",] }
 dhcproto = "0.12.0"