fix: (security) use debian:stable-slim

Author: xtfer

Dockerfile

@@ -1,5 +1,5 @@
 # syntax=docker/dockerfile:1
-FROM debian:bookworm-slim
+FROM debian:stable-slim
 
 WORKDIR /app
 RUN apt-get update && apt-get install -y --no-install-recommends ca-certificates libdbus-1-3 && rm -rf /var/lib/apt/lists/*

Dockerfile.build

@@ -14,7 +14,7 @@ COPY src/ ./src/
 RUN cargo build --release --bin harmony
 
 # Runtime stage
-FROM debian:bookworm-slim
+FROM debian:stable-slim
 
 # Install minimal dependencies
 RUN apt-get update && \