docs: remove SonarCloud coverage badge from all README files

Remove duplicate coverage badges as CodeCov badge already provides
test coverage information. This eliminates redundancy and keeps the
badge section cleaner.

Files updated:
- README.md (English)
- README.ru.md (Russian)
- README.tj.md (Tajik)

Author: Bakhtier Gaibulloev

README.md

@@ -14,7 +14,6 @@
 [![License](https://img.shields.io/badge/license-MIT-green.svg)](LICENSE)
 
 [![Quality Gate Status](https://sonarcloud.io/api/project_badges/measure?project=lindentechde_Somon-Script&metric=alert_status)](https://sonarcloud.io/project/overview?id=lindentechde_Somon-Script)
-[![Coverage](https://sonarcloud.io/api/project_badges/measure?project=lindentechde_Somon-Script&metric=coverage)](https://sonarcloud.io/project/overview?id=lindentechde_Somon-Script)
 [![Bugs](https://sonarcloud.io/api/project_badges/measure?project=lindentechde_Somon-Script&metric=bugs)](https://sonarcloud.io/project/overview?id=lindentechde_Somon-Script)
 [![Code Smells](https://sonarcloud.io/api/project_badges/measure?project=lindentechde_Somon-Script&metric=code_smells)](https://sonarcloud.io/project/overview?id=lindentechde_Somon-Script)
 [![Security Rating](https://sonarcloud.io/api/project_badges/measure?project=lindentechde_Somon-Script&metric=security_rating)](https://sonarcloud.io/project/overview?id=lindentechde_Somon-Script)

README.ru.md

@@ -14,7 +14,6 @@
 [![Лицензия](https://img.shields.io/badge/license-MIT-green.svg)](LICENSE)
 
 [![Статус Quality Gate](https://sonarcloud.io/api/project_badges/measure?project=lindentechde_Somon-Script&metric=alert_status)](https://sonarcloud.io/project/overview?id=lindentechde_Somon-Script)
-[![Покрытие](https://sonarcloud.io/api/project_badges/measure?project=lindentechde_Somon-Script&metric=coverage)](https://sonarcloud.io/project/overview?id=lindentechde_Somon-Script)
 [![Ошибки](https://sonarcloud.io/api/project_badges/measure?project=lindentechde_Somon-Script&metric=bugs)](https://sonarcloud.io/project/overview?id=lindentechde_Somon-Script)
 [![Проблемы Кода](https://sonarcloud.io/api/project_badges/measure?project=lindentechde_Somon-Script&metric=code_smells)](https://sonarcloud.io/project/overview?id=lindentechde_Somon-Script)
 [![Рейтинг Безопасности](https://sonarcloud.io/api/project_badges/measure?project=lindentechde_Somon-Script&metric=security_rating)](https://sonarcloud.io/project/overview?id=lindentechde_Somon-Script)

README.tj.md

@@ -14,7 +14,6 @@
 [![Иҷозатнома](https://img.shields.io/badge/license-MIT-green.svg)](LICENSE)
 
 [![Ҳолати Quality Gate](https://sonarcloud.io/api/project_badges/measure?project=lindentechde_Somon-Script&metric=alert_status)](https://sonarcloud.io/project/overview?id=lindentechde_Somon-Script)
-[![Пӯшиш](https://sonarcloud.io/api/project_badges/measure?project=lindentechde_Somon-Script&metric=coverage)](https://sonarcloud.io/project/overview?id=lindentechde_Somon-Script)
 [![Хатоҳо](https://sonarcloud.io/api/project_badges/measure?project=lindentechde_Somon-Script&metric=bugs)](https://sonarcloud.io/project/overview?id=lindentechde_Somon-Script)
 [![Мушкилоти Код](https://sonarcloud.io/api/project_badges/measure?project=lindentechde_Somon-Script&metric=code_smells)](https://sonarcloud.io/project/overview?id=lindentechde_Somon-Script)
 [![Рейтинги Бехатарӣ](https://sonarcloud.io/api/project_badges/measure?project=lindentechde_Somon-Script&metric=security_rating)](https://sonarcloud.io/project/overview?id=lindentechde_Somon-Script)