Bump the opentelemetry group across 1 directory with 3 updates

Updates the requirements on [opentelemetry](https://github.com/open-telemetry/opentelemetry-rust), [opentelemetry_sdk](https://github.com/open-telemetry/opentelemetry-rust) and [opentelemetry-stdout](https://github.com/open-telemetry/opentelemetry-rust) to permit the latest version.

Updates `opentelemetry` to 0.26.0
- [Release notes](https://github.com/open-telemetry/opentelemetry-rust/releases)
- [Commits](open-telemetry/opentelemetry-rust@opentelemetry_sdk-0.21.0...opentelemetry-0.26.0)

Updates `opentelemetry_sdk` to 0.26.0
- [Release notes](https://github.com/open-telemetry/opentelemetry-rust/releases)
- [Commits](open-telemetry/opentelemetry-rust@v0.21.2...opentelemetry_sdk-0.26.0)

Updates `opentelemetry-stdout` to 0.26.0
- [Release notes](https://github.com/open-telemetry/opentelemetry-rust/releases)
- [Commits](open-telemetry/opentelemetry-rust@opentelemetry-stdout-0.2.0...opentelemetry-stdout-0.26.0)

---
updated-dependencies:
- dependency-name: opentelemetry
  dependency-type: direct:production
  dependency-group: opentelemetry
- dependency-name: opentelemetry_sdk
  dependency-type: direct:production
  dependency-group: opentelemetry
- dependency-name: opentelemetry-stdout
  dependency-type: direct:production
  dependency-group: opentelemetry
...

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

libcnb/Cargo.toml

@@ -23,9 +23,9 @@ cyclonedx-bom = { version = "0.7.0", optional = true }
 libcnb-common.workspace = true
 libcnb-data.workspace = true
 libcnb-proc-macros.workspace = true
-opentelemetry = { version = "0.21.0", optional = true }
-opentelemetry_sdk = { version = "0.21.2", optional = true }
-opentelemetry-stdout = { version = "0.2.0", optional = true, features = ["trace"] }
+opentelemetry = { version = "0.26.0", optional = true }
+opentelemetry_sdk = { version = "0.26.0", optional = true }
+opentelemetry-stdout = { version = "0.26.0", optional = true, features = ["trace"] }
 serde = { version = "1.0.213", features = ["derive"] }
 thiserror = "1.0.65"
 toml.workspace = true