Update Dockerfile

Dockerfile

@@ -22,18 +22,13 @@ WORKDIR $HOME/app
 COPY --chown=user . $HOME/app
 
 # Download VOICEVOX Core from latest Release
-RUN curl -s https://api.github.com/repos/VOICEVOX/voicevox_core/releases/latest \
-    | jq -r '.assets[] | select(.name|test("^voicevox_core-linux-x64.*\\.zip$")) | .browser_download_url' \
-    | xargs curl -L -o voicevox_core.zip
-
-# Extract VOICEVOX Core and flatten if needed
-RUN unzip voicevox_core.zip -d ./voicevox_core && \
-    cd ./voicevox_core && \
-    entry=$(find . -mindepth 1 -maxdepth 1) && \
-    count=$(echo "$entry" | wc -l) && \
-    [ "$count" -eq 1 ] && \
-    mv "$entry"/* . && \
-    rmdir "$entry"
+RUN curl -sSfL https://github.com/VOICEVOX/voicevox_core/releases/latest/download/download-linux-x64 --output download
+
+# Give execution permissions
+RUN chmod +x ./download
+
+# Install VOICEVOX Core
+RUN ./download --output voicevox_core
     
 # Clone VOICEVOX Engine from Git Repository
 RUN git clone https://github.com/VOICEVOX/voicevox_engine.git voicevox_engine