Add change log entry for Go runtime upgrade (#5337)

Signed-off-by: Alvin Lin <alvinlin123@gmail.com>
Signed-off-by: Friedrich Gonzalez <friedrichg@gmail.com>
Co-authored-by: Friedrich Gonzalez <friedrichg@gmail.com>

Author: alvinlin123

CHANGELOG.md

@@ -4,11 +4,12 @@
 * [CHANGE] Ruler: Added user label to `cortex_ruler_write_requests_total`, `cortex_ruler_write_requests_failed_total`, `cortex_ruler_queries_total`, and `cortex_ruler_queries_failed_total` metrics. #5312
 * [CHANGE] Alertmanager: Validating new fields on the PagerDuty AM config. #5290
 * [CHANGE] Ingester: Creating label `native-histogram-sample` on the `cortex_discarded_samples_total` to keep track of discarded native histogram samples. #5289
-* [ENHANCEMENT] Distributor/Ingester: Add span on push path #5319
 * [FEATURE] Store Gateway: Add `max_downloaded_bytes_per_request` to limit max bytes to download per store gateway request.
+* [ENHANCEMENT] Distributor/Ingester: Add span on push path #5319
 * [ENHANCEMENT] Support object storage backends for runtime configuration file. #5292
 * [ENHANCEMENT] Query Frontend: Reject subquery with too small step size. #5323
 * [ENHANCEMENT] Compactor: Exposing Thanos accept-malformed-index to Cortex compactor. #5334
+* [ENHANCEMENT] Update Go version to 1.20.4. #5299
 * [ENHANCEMENT] Log: Avoid expensive log.Valuer evaluation for disallowed levels. #5297
 * [BUGFIX] Ruler: Validate if rule group can be safely converted back to rule group yaml from protobuf message #5265
 * [BUGFIX] Querier: Convert gRPC `ResourceExhausted` status code from store gateway to 422 limit error. #5286