build: bump openssl-sys from 0.9.72 to 0.9.73

Bumps [openssl-sys](https://github.com/sfackler/rust-openssl) from 0.9.72 to 0.9.73.
- [Release notes](https://github.com/sfackler/rust-openssl/releases)
- [Commits](https://github.com/sfackler/rust-openssl/compare/openssl-sys-v0.9.72...openssl-sys-v0.9.73)

---
updated-dependencies:
- dependency-name: openssl-sys
  dependency-type: indirect
  update-type: version-update:semver-patch
...

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

Cargo.lock

@@ -593,9 +593,9 @@ dependencies = [
 
 [[package]]
 name = "openssl-sys"
-version = "0.9.72"
+version = "0.9.73"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7e46109c383602735fa0a2e48dd2b7c892b048e1bf69e5c3b1d804b7d9c203cb"
+checksum = "9d5fd19fb3e0a8191c1e34935718976a3e70c112ab9a24af6d7cadccd9d90bc0"
 dependencies = [
  "autocfg",
  "cc",