chore(deps): bump rustls from 0.21.7 to 0.21.9

Bumps [rustls](https://github.com/rustls/rustls) from 0.21.7 to 0.21.9.
- [Release notes](https://github.com/rustls/rustls/releases)
- [Commits](rustls/rustls@v/0.21.7...v/0.21.9)

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

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

Author: dependabot[bot]

Cargo.lock

@@ -22,7 +22,7 @@ mime_guess = "2.0"
 once_cell = "1.18"
 percent-encoding = "2.3"
 rcgen = { version = "0.11.3" }
-rustls = "0.21.7"
+rustls = "0.21.9"
 tokio-rustls = "0.24.1"
 tokio = { version = "1.34", features = ["fs", "io-util", "net", "rt-multi-thread", "sync"] }
 url = "2.5.0"