Update Dockerfile

Dockerfile

@@ -7,9 +7,15 @@ ENV PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD 1
 # Specify work directory
 WORKDIR /app
 
-# Clone repo with authentication
+# Install FFmpeg
+RUN apt-get update && apt-get install -y ffmpeg
+
+# Force no cache with build arg
+ARG CACHEBUST=1
+
+# Clone repo with authentication, shallow clone
 RUN --mount=type=secret,id=GITHUB_REPO,required=true \
-    git clone $(cat /run/secrets/GITHUB_REPO) .
+    git clone --depth=1 $(cat /run/secrets/GITHUB_REPO) .
 
 # Install dependencies
 RUN npm install