update docker file

Dockerfile

@@ -1,32 +1,25 @@
 # First stage: Build the Rust application
 FROM rust:1.72.1 AS builder
-
 # Install system dependencies
 RUN apt-get update && \
     apt-get install -y cmake pkg-config && \
     apt-get clean && \
     rm -rf /var/lib/apt/lists/*
-
 # Set up the working directory
 WORKDIR /app
-
 # Copy the Rust project's source files
 COPY . .
-
 # Build the Rust project
 RUN cargo build --release
 
 # Second stage: Create a smaller runtime image
-FROM debian:buster-slim
-
+FROM debian:bullseye-slim
 # Install necessary runtime dependencies
 RUN apt-get update && \
-    apt-get install -y libssl-dev ca-certificates && \
+    apt-get install -y libssl1.1 ca-certificates && \
     apt-get clean && \
     rm -rf /var/lib/apt/lists/*
-
 # Copy the compiled binary from the builder stage
 COPY --from=builder /app/target/release/rustdress /usr/local/bin/
-
 # Run the Rust binary
-CMD ["rustdress"]
+CMD ["rustdress"]