feat(chat-room-bg): 배경 이미지 변경 기능 추가

SodaLive/Sources/Chat/Character/Detail/Gallery/CharacterDetailGalleryRepository.swift

@@ -26,4 +26,18 @@ final class CharacterDetailGalleryRepository {
             )
         )
     }
+    
+    func getMyCharacterImageList(
+        characterId: Int64,
+        page: Int,
+        size: Int = 20
+    ) -> AnyPublisher<Response, MoyaError> {
+        return characterApi.requestPublisher(
+            .getMyCharacterImageList(
+                characterId: characterId,
+                page: page,
+                size: size
+            )
+        )
+    }
 }