Bump the opentelemetry group with 4 updates

Bumps the opentelemetry group with 4 updates: [opentelemetry](https://github.com/open-telemetry/opentelemetry-rust), [opentelemetry-prometheus](https://github.com/open-telemetry/opentelemetry-rust), [opentelemetry_sdk](https://github.com/open-telemetry/opentelemetry-rust) and [opentelemetry-otlp](https://github.com/open-telemetry/opentelemetry-rust).


Updates `opentelemetry` from 0.27.1 to 0.28.0
- [Release notes](https://github.com/open-telemetry/opentelemetry-rust/releases)
- [Commits](open-telemetry/opentelemetry-rust@opentelemetry-0.27.1...opentelemetry-0.28.0)

Updates `opentelemetry-prometheus` from 0.27.0 to 0.28.0
- [Release notes](https://github.com/open-telemetry/opentelemetry-rust/releases)
- [Commits](open-telemetry/opentelemetry-rust@opentelemetry-prometheus-0.27.0...opentelemetry-prometheus-0.28.0)

Updates `opentelemetry_sdk` from 0.27.1 to 0.28.0
- [Release notes](https://github.com/open-telemetry/opentelemetry-rust/releases)
- [Commits](open-telemetry/opentelemetry-rust@opentelemetry_sdk-0.27.1...opentelemetry_sdk-0.28.0)

Updates `opentelemetry-otlp` from 0.27.0 to 0.28.0
- [Release notes](https://github.com/open-telemetry/opentelemetry-rust/releases)
- [Commits](open-telemetry/opentelemetry-rust@opentelemetry-otlp-0.27.0...opentelemetry-otlp-0.28.0)

---
updated-dependencies:
- dependency-name: opentelemetry
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: opentelemetry
- dependency-name: opentelemetry-prometheus
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: opentelemetry
- dependency-name: opentelemetry_sdk
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: opentelemetry
- dependency-name: opentelemetry-otlp
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: opentelemetry
...

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

Cargo.toml

@@ -42,8 +42,8 @@ futures-lite = "2.6.0"
 git-version = "0.3.9"
 janus_messages = "0.7.50"
 log = "0.4.25"
-opentelemetry = { version = "0.27.1", features = ["metrics", "logs"] }
-opentelemetry-prometheus = { version = "0.27.0", features = ["prometheus-encoding"] }
+opentelemetry = { version = "0.28.0", features = ["metrics", "logs"] }
+opentelemetry-prometheus = { version = "0.28.0", features = ["prometheus-encoding"] }
 prio = "0.16.7"
 prometheus = "0.13.4"
 querystrong = "0.3.0"
@@ -90,8 +90,8 @@ url = "2.5.2"
 uuid = { version = "1.13.1", features = ["v4", "fast-rng", "serde"] }
 validator = { version = "0.20.0", features = ["derive"] }
 trillium-opentelemetry = { version = "0.10.0", default-features = false, features = ["metrics"] }
-opentelemetry_sdk = { version = "0.27.1", features = ["rt-tokio", "logs", "metrics"] }
-opentelemetry-otlp = { version = "0.27.0", optional = true }
+opentelemetry_sdk = { version = "0.28.0", features = ["rt-tokio", "logs", "metrics"] }
+opentelemetry-otlp = { version = "0.28.0", optional = true }
 
 [dependencies.oauth2]
 version = "5.0.0"