Update README.md to change quality gate badge URL for SonarCloud

Modified the quality gate badge link in the README.md file to use the correct API endpoint for alert status measurement, ensuring accurate representation of the project's quality metrics.

README.md

@@ -2,7 +2,7 @@
 
 [![ci](https://gitea.hsrv.site/mrleo1nid/TeleWave/actions/workflows/ci.yml/badge.svg)](https://gitea.hsrv.site/mrleo1nid/TeleWave/actions?workflow=ci.yml)
 [![coverage](https://gitea.hsrv.site/mrleo1nid/TeleWave/raw/branch/badges/coverage.svg)](https://gitea.hsrv.site/mrleo1nid/TeleWave/actions?workflow=ci.yml)
-[![quality gate](https://sonarcloud.io/api/project_badges/quality_gate?project=mrleo1nid_telewave&token=fa38966b51f0043827fa89a5e42a0afe20180758)](https://sonarcloud.io/summary/new_code?id=mrleo1nid_telewave)
+[![quality gate](https://sonarcloud.io/api/project_badges/measure?project=mrleo1nid_telewave&metric=alert_status&token=fa38966b51f0043827fa89a5e42a0afe20180758)](https://sonarcloud.io/summary/new_code?id=mrleo1nid_telewave)
 
 **TeleWave** — сервис онлайн-каналов: пользователи смотрят сетку каналов, видео отдаётся из
 хранилища на сервере, админ управляет каналами и пользователями.