Bump openssl from 0.10.60 to 0.10.66

Bumps [openssl](https://github.com/sfackler/rust-openssl) from 0.10.60 to 0.10.66.
- [Release notes](https://github.com/sfackler/rust-openssl/releases)
- [Commits](rust-openssl/rust-openssl@openssl-v0.10.60...openssl-v0.10.66)

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

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Cargo.lock

@@ -30,7 +30,7 @@ rust-version = "1.67"
 acme2 = "0.5"
 base64 = "0.21.0"
 futures-util = "0.3.18"
-openssl = "0.10.60"
+openssl = "0.10.66"
 reqwest = "0.11.7"
 sha2 = "0.10.6"
 toml = { version = "0.7.2", default-features = false, features = ["parse"] }