Don't sentry breadcrumb trace-level messages (#32901)

They are extremely verbose and use a lot of memory.
Notably aws-smithy traces the entire request on an S3 upload.

from inside orchestrator.rs in aws-smithy-runtime
```
        trace!(request = ?request, "transmitting request");
```

GitOrigin-RevId: ead23b8ce867f52b609a71c566a6beea7469aebc

crates/cmd_util/src/env.rs

@@ -106,7 +106,7 @@ where
     layers.push(format_layer);
     let sentry_layer = sentry_tracing::layer()
         .event_filter(|md| match md.level() {
-            &tracing::Level::DEBUG => EventFilter::Ignore,
+            &tracing::Level::DEBUG | &tracing::Level::TRACE => EventFilter::Ignore,
             _ => EventFilter::Breadcrumb,
         })
         .span_filter(|_md| false);