fix(Dockerfile): Update image to 1.79 rust and build from /swap direc…

…tory

Dockerfile

@@ -1,4 +1,6 @@
-FROM rust:1.59-slim AS builder
+# This Dockerfile builds the asb binary
+
+FROM rust:1.79-slim AS builder
 
 WORKDIR /build
 
@@ -7,6 +9,8 @@ RUN apt-get install -y git clang cmake libsnappy-dev
 
 COPY . .
 
+WORKDIR /build/swap
+
 RUN cargo build --release --bin=asb
 
 FROM debian:bullseye-slim