build(deps): update opentelemetry-http requirement from 0.10.0 to 0.11.0

Updates the requirements on [opentelemetry-http](https://github.com/open-telemetry/opentelemetry-rust) to permit the latest version.
- [Release notes](https://github.com/open-telemetry/opentelemetry-rust/releases)
- [Commits](open-telemetry/opentelemetry-rust@v0.10.0...v0.11.0)

---
updated-dependencies:
- dependency-name: opentelemetry-http
  dependency-type: direct:production
...

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

poem/Cargo.toml

@@ -128,7 +128,7 @@ libcookie = { package = "cookie", version = "0.18", features = [
     "key-expansion",
     "secure",
 ], optional = true }
-opentelemetry-http = { version = "0.10.0", optional = true }
+opentelemetry-http = { version = "0.11.0", optional = true }
 opentelemetry-semantic-conventions = { version = "0.13.0", optional = true }
 opentelemetry-prometheus = { version = "0.14.0", optional = true }
 libprometheus = { package = "prometheus", version = "0.13.0", optional = true }