compute_ctl: print OpenTelemetry errors via tracing, not stdout (#9830)

Before, `OpenTelemetry` errors were printed to stdout/stderr directly,
causing one of the few log lines without a timestamp, like:

```
OpenTelemetry trace error occurred. error sending request for url (http://localhost:4318/v1/traces)
```

Now, we print:

```
2024-11-21T02:24:20.511160Z  INFO OpenTelemetry error: error sending request for url (http://localhost:4318/v1/traces)
```

I found this while investigating #9731.

compute_tools/src/bin/compute_ctl.rs

@@ -105,6 +105,11 @@ fn main() -> Result<()> {
 fn init() -> Result<(String, clap::ArgMatches)> {
     init_tracing_and_logging(DEFAULT_LOG_LEVEL)?;
 
+    opentelemetry::global::set_error_handler(|err| {
+        tracing::info!("OpenTelemetry error: {err}");
+    })
+    .expect("global error handler lock poisoned");
+
     let mut signals = Signals::new([SIGINT, SIGTERM, SIGQUIT])?;
     thread::spawn(move || {
         for sig in signals.forever() {