Update rustls-platform-verifier requirement from 0.3 to 0.4

Updates the requirements on [rustls-platform-verifier](https://github.com/rustls/rustls-platform-verifier) to permit the latest version.
- [Release notes](https://github.com/rustls/rustls-platform-verifier/releases)
- [Changelog](https://github.com/rustls/rustls-platform-verifier/blob/main/CHANGELOG)
- [Commits](rustls/rustls-platform-verifier@v/0.3.0...v/0.4.0)

---
updated-dependencies:
- dependency-name: rustls-platform-verifier
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Cargo.toml

@@ -29,7 +29,7 @@ hyper-util = { version = "0.1", default-features = false, features = ["client-le
 log = { version = "0.4.4", optional = true }
 pki-types = { package = "rustls-pki-types", version = "1" }
 rustls-native-certs = { version = "0.8", optional = true }
-rustls-platform-verifier = { version = "0.3", optional = true }
+rustls-platform-verifier = { version = "0.4", optional = true }
 rustls = { version = "0.23", default-features = false }
 tokio = "1.0"
 tokio-rustls = { version = "0.26", default-features = false }