docker: Add build arguments

Author: zaeleus

Dockerfile

@@ -1,14 +1,17 @@
 # syntax=docker/dockerfile:1
 
-FROM rust:1.85.0-bookworm AS builder
+ARG RUST_VERSION=1.85.0
+ARG DEBIAN_CODENAME=bookworm
+
+FROM rust:${RUST_VERSION}-${DEBIAN_CODENAME} AS builder
 
 COPY .git /app/.git
 COPY Cargo.lock Cargo.toml /app/
 COPY src/ /app/src/
 
 RUN cargo build --release --manifest-path /app/Cargo.toml
 
-FROM debian:bookworm
+FROM debian:${DEBIAN_CODENAME}
 
 COPY --from=builder /app/target/release/fq /usr/local/bin/