Bump ring from 0.17.5 to 0.17.7

Bumps [ring](https://github.com/briansmith/ring) from 0.17.5 to 0.17.7.
- [Commits](https://github.com/briansmith/ring/commits)

---
updated-dependencies:
- dependency-name: ring
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Cargo.toml

@@ -65,7 +65,7 @@ image = { version = "0.24.7", default-features = false, features = ["jpeg", "png
 # Used to encode server public key
 base64 = "0.21.5"
 # Used when hashing the state
-ring = "0.17.5"
+ring = "0.17.7"
 # Used when querying the SRV record of other servers
 trust-dns-resolver = "0.23.2"
 # Used to find matching events for appservices