changelog: add notes about closing #13876

[skip ci]

CHANGELOG.md

@@ -27,6 +27,7 @@
 * **Alerting**: Increaste default duration for queries [#13945](https://github.com/grafana/grafana/pull/13945)
 * **Alerting**: More options for the Slack Alert notifier [#13993](https://github.com/grafana/grafana/issues/13993), thx [@andreykaipov](https://github.com/andreykaipov)
 * **Alerting**: Can't receive DingDing alert when alert is triggered [#13723](https://github.com/grafana/grafana/issues/13723), thx [@Yukinoshita-Yukino](https://github.com/Yukinoshita-Yukino)
+* **Alerting**: Increase Telegram captions length limit [#13876](https://github.com/grafana/grafana/pull/13876), thx [@skgsergio](https://github.com/skgsergio)
 * **Internal metrics**: Renamed `grafana_info` to `grafana_build_info` and added branch, goversion and revision [#13876](https://github.com/grafana/grafana/pull/13876)
 * **Datasource Proxy**: Keep trailing slash for datasource proxy requests [#13326](https://github.com/grafana/grafana/pull/13326), thx [@ryantxu](https://github.com/ryantxu)
 * **OAuth**: Fix Google OAuth relies on email, not google account id [#13924](https://github.com/grafana/grafana/issues/13924), thx [@vinicyusmacedo](https://github.com/vinicyusmacedo)