message: guix: Make guix honor MAX_JOBS setting
diff: @@ -18,6 +18,7 @@ SOURCE_DATE_EPOCH="${SOURCE_DATE_EPOCH:-$(git log --format=%at -1)}"
  time-machine() {
  guix time-machine --url=https://github.com/dongcarl/guix.git \
  --commit=b066c25026f21fb57677aa34692a5034338e7ee3 \
  + --max-jobs="$MAX_JOBS" \
  -- "$@"
  }
  @@ -108,6 +109,7 @@ for host in ${HOSTS=x86_64-linux-gnu arm-linux-gnueabihf aarch64-linux-gnu riscv
  --expose="$(git rev-parse --git-common-dir)" \
  ${SOURCES_PATH:+--share="$SOURCES_PATH"} \
  ${ADDITIONAL_GUIX_ENVIRONMENT_FLAGS} \
  + --max-jobs="$MAX_JOBS" \
  -- env HOST="$host" \
  MAX_JOBS="$MAX_JOBS" \
  SOURCE_DATE_EPOCH="${SOURCE_DATE_EPOCH:?unable to determine value}" \
  