* Refactor error handling for version not found cases across multiple installers
* Mock core.error in tests to suppress error logs
* fix(graalvm): improve error messages for EA version not found scenarios
* refactor(tests): update error messages for version not found scenarios
* fix(graalvm): enhance error messages for version not found scenarios
* fix(graalvm): improve error messages for version not found scenarios with updated download URL
* fix(graalvm): improve error handling for EA version not found scenarios with clearer messages