Update Dockerfile

Dockerfile

@@ -33,16 +33,16 @@ RUN git clone --branch master https://github.com/VOICEVOX/voicevox_engine.git vo
 # ---------- Important! Temporary Downgrade to 0.15.x ---------- 
 
 # Download VOICEVOX Core from 0.15.7 Release
-# RUN curl -sSfL https://github.com/VOICEVOX/voicevox_core/releases/download/0.15.7/download.sh --output download.sh 
+RUN curl -sSfL https://github.com/VOICEVOX/voicevox_core/releases/download/0.15.7/download.sh --output download.sh 
 
 # Give execution permissions
-# RUN chmod +x ./download.sh
+RUN chmod +x ./download.sh
 
 # Install VOICEVOX Core
-# RUN ./download.sh --output voicevox_core --version 0.15.7
+RUN ./download.sh --output voicevox_core --version 0.15.7
 
 # Clone  VOICEVOX Engine from 0.23.0 Repository
-# RUN git clone --branch release-0.23 https://github.com/VOICEVOX/voicevox_engine.git voicevox_engine 
+RUN git clone --branch release-0.23 https://github.com/VOICEVOX/voicevox_engine.git voicevox_engine 
 
 # ---------- Important! https://github.com/VOICEVOX/voicevox_engine/issues/1568 ----------