fix(otel): fix doctests (#794)

* docs(otel): use ignore attribute in doctests

* create dependency infinite loop

Author: lcian

sentry-opentelemetry/Cargo.toml

@@ -26,7 +26,7 @@ opentelemetry_sdk = { version = "0.29.0", default-features = false, features = [
 opentelemetry-semantic-conventions = "0.29.0"
 
 [dev-dependencies]
-sentry = { version = "0.37.0", path = "../sentry", features = ["test"] }
+sentry = { version = "0.37.0", path = "../sentry", features = ["test", "opentelemetry"] }
 sentry-core = { version = "0.37.0", path = "../sentry-core", features = [
     "test",
 ] }

sentry-opentelemetry/src/lib.rs

@@ -65,7 +65,13 @@
 //!
 //! Use the OpenTelemetry API to create spans. They will be captured by Sentry:
 //!
-//! ```no_run
+//! ```
+//! # use opentelemetry::{
+//! #     global,
+//! #     trace::{TraceContextExt, Tracer},
+//! #     KeyValue,
+//! # };
+//!
 //! let tracer = global::tracer("tracer");
 //! // Creates a Sentry span (transaction) with the name set to "example"
 //! tracer.in_span("example", |_| {