Update worker requirement from ^0.4.1 to ^0.5.0 in /adapter

Updates the requirements on [worker](https://github.com/cloudflare/workers-rs) to permit the latest version.
- [Release notes](https://github.com/cloudflare/workers-rs/releases)
- [Commits](cloudflare/workers-rs@v0.4.1...v0.5.0)

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

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

adapter/Cargo.toml

@@ -16,7 +16,7 @@ crate-type = ["cdylib", "lib"]
 
 [dependencies]
 axum = { version = "^0.7.6", default-features = false }
-worker = { version = "^0.4.1" }
+worker = { version = "^0.5.0" }
 axum-wasm-macros = "^0.1.2"
 futures = "0.3.30"