chore(deps): bump openssl

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


Updates `openssl` from 0.10.79 to 0.10.80
- [Release notes](https://github.com/rust-openssl/rust-openssl/releases)
- [Commits](https://github.com/rust-openssl/rust-openssl/compare/openssl-v0.10.79...openssl-v0.10.80)

---
updated-dependencies:
- dependency-name: openssl
  dependency-version: 0.10.80
  dependency-type: indirect
  dependency-group: cargo
...

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

backend/rust/kokoros/Cargo.lock

@@ -1392,9 +1392,9 @@ checksum = "384b8ab6d37215f3c5301a95a4accb5d64aa607f1fcb26a11b5303878451b4fe"
 
 [[package]]
 name = "openssl"
-version = "0.10.79"
+version = "0.10.80"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bf0b434746ee2832f4f0baf10137e1cabb18cbe6912c69e2e33263c45250f542"
+checksum = "a45fa2aa886c42762255da344f0a0d313e254066c46aad76f300c3d3da62d967"
 dependencies = [
  "bitflags",
  "cfg-if",
@@ -1423,9 +1423,9 @@ checksum = "7c87def4c32ab89d880effc9e097653c8da5d6ef28e6b539d313baaacfbafcbe"
 
 [[package]]
 name = "openssl-sys"
-version = "0.9.115"
+version = "0.9.116"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "158fe5b292746440aa6e7a7e690e55aeb72d41505e2804c23c6973ad0e9c9781"
+checksum = "f28a22dc7140cda5f096e5e7724a6962ca81a7f8bfd2979f9b18c11af56318c4"
 dependencies = [
  "cc",
  "libc",