build(deps): update octets requirement from 0.2.0 to 0.3.0

Updates the requirements on [octets](https://github.com/cloudflare/quiche) to permit the latest version.
- [Release notes](https://github.com/cloudflare/quiche/releases)
- [Commits](cloudflare/quiche@0.2.0...0.3.0)

---
updated-dependencies:
- dependency-name: octets
  dependency-type: direct:production
...

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

wtransport-proto/Cargo.toml

@@ -14,7 +14,7 @@ rust-version = "1.70"
 
 [dependencies]
 httlib-huffman = "0.3.4"
-octets = "0.2.0"
+octets = "0.3.0"
 thiserror = "1.0.50"
 url = "2.4.0"