Update Dockerfile

Dockerfile

@@ -28,6 +28,7 @@ RUN mkdir -p /app/pretrained /app/hf_cache /.cache/gdown && \
 COPY requirements.txt /app/requirements.txt
 RUN conda create -n realcam python=3.10 -y && \
     conda run -n realcam pip install --upgrade pip && \
+    conda install ffmpeg=7 -c conda-forge && \
     conda run -n realcam pip install -r /app/requirements.txt
 
 RUN chmod -R 777 /app /workspace