chore: use rust-ffmpeg docker image

.dockerignore

@@ -1,4 +1,3 @@
 **/target/
 **/.git/
 **/out/
-**/Dockerfile

crates/zap-stream/Dockerfile

@@ -1,46 +1,15 @@
-ARG IMAGE=rust:bookworm
+FROM voidic/rust-ffmpeg AS build
-
-FROM $IMAGE AS build
 WORKDIR /app/src
-ENV FFMPEG_DIR=/app/ffmpeg
 COPY . .
-RUN apt update && \
-    apt install -y \
-    build-essential \
-    libx264-dev \
-    libx265-dev \
-    libwebp-dev \
-    libpng-dev \
-    nasm \
-    protobuf-compiler \
-    libclang-dev && \
-    rm -rf /var/lib/apt/lists/*
-RUN wget -O ffmpeg.tar.gz https://git.v0l.io/ffmpeg/ffmpeg/archive/release/7.1.tar.gz && \
-    tar xfv ffmpeg.tar.gz && \
-    cd ffmpeg && \
-    ./configure \
-    --prefix=$FFMPEG_DIR \
-    --disable-programs \
-    --disable-doc \
-    --disable-network \
-    --enable-gpl \
-    --enable-version3 \
-    --disable-postproc \
-    --enable-libx264 \
-    --enable-libx265 \
-    --enable-libwebp \
-    --disable-static \
-    --enable-shared && \
-    make -j$(nproc) && make install
 ENV LD_LIBRARY_PATH=$FFMPEG_DIR/lib
 RUN cargo test
 RUN cargo install --path ./crates/zap-stream --root /app/build
 
-FROM $IMAGE AS runner
+FROM rust:bookworm
 WORKDIR /app
 RUN apt update && \
     apt install -y libx264-164 && \
     rm -rf /var/lib/apt/lists/*
 COPY --from=build /app/build .
-COPY --from=build /app/ffmpeg/lib/ /lib
+COPY --from=build /app/src/ffmpeg/lib/ /lib
 ENTRYPOINT ["/app/bin/zap-stream"]