Update opentelemetry requirement from 0.25 to 0.26

Updates the requirements on [opentelemetry](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@opentelemetry-0.25.0...opentelemetry-0.26.0)

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

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

Cargo.toml

@@ -29,6 +29,6 @@ tracing-subscriber = "0.3"
 color-eyre = "0.6.1"
 comfy-table = "7.0.0"
 console = "0.15"
-opentelemetry = "0.25"
+opentelemetry = "0.26"
 rand = "0.8.5"
 tracing-subscriber = { version = "0.3", features = ["env-filter"] }