chore: fix change log

Author: taisho6339

opentelemetry-sdk/CHANGELOG.md

@@ -6,9 +6,7 @@
 - **Breaking** Removed the following public hidden methods from the `SdkTracer` [#3227][3227]:
   - `id_generator`, `should_sample`
 - **Fix**: ObservableCounter and ObservableUpDownCounter now correctly report only data points from the current measurement cycle,
-  removing stale attribute combinations that are no longer observed. This fixes [#3213](3213)
-  where dynamic attributes (e.g., client connections with changing IPs/ports) would accumulate historical data indefinitely.
-  Both Delta and Cumulative temporality modes now use `collect_and_reset` internally to clean up unobserved attributes.
+  removing stale attribute combinations that are no longer observed. [#3213](https://github.com/open-telemetry/opentelemetry-rust/pull/3248)
 
 [3227]: https://github.com/open-telemetry/opentelemetry-rust/pull/3227