콘텐츠 메인 API - @Transactional(readOnly = true) 추가

src/main/kotlin/kr/co/vividnext/sodalive/content/theme/AudioContentThemeQueryRepository.kt

@@ -6,6 +6,7 @@ import kr.co.vividnext.sodalive.content.theme.QAudioContentTheme.audioContentThe
 import org.springframework.beans.factory.annotation.Value
 import org.springframework.cache.annotation.Cacheable
 import org.springframework.stereotype.Repository
+import org.springframework.transaction.annotation.Transactional
 
 @Repository
 class AudioContentThemeQueryRepository(
@@ -28,6 +29,7 @@ class AudioContentThemeQueryRepository(
             .fetch()
     }
 
+    @Transactional(readOnly = true)
     @Cacheable(cacheNames = ["default"], key = "'activeThemeOfContent:' + ':' + #isAdult")
     fun getActiveThemeOfContent(isAdult: Boolean = false): List<String> {
         var where = audioContent.isActive.isTrue