Docker image of v3 doesn't set the dynamic space size properly

Hi,

I tried to use v3.6.10, compiled from source in docker:

git clone https://github.com/dimitri/pgloader.git && cd pgloader
# docker build fail on tag v3.6.10 due to debian resolution failing in apt install, but that's not the bug here :-)
docker build -t pgloader-local:3.6.10 .
cat > /tmp/dyn.lisp <<'EOF'
(format t "~&dynamic-space-size = ~D bytes (~D MB)~%"
        (sb-ext:dynamic-space-size)
        (floor (sb-ext:dynamic-space-size) (* 1024 1024)))
(sb-ext:quit)
EOF
docker run --rm -v /tmp/dyn.lisp:/tmp/dyn.lisp pgloader-local:3.6.10  pgloader --load-lisp-file /tmp/dyn.lisp --dry-run /dev/null
Loading code from #P"/tmp/dyn.lisp"
dynamic-space-size = 1073741824 bytes (1024 MB)

I must admit that I'm not fluent in Lisp, so the little Lisp program has been written by Claude; it seems valid to me, but I must admit that I did not write it.

Thx.

Reproduce the reported result by building the repository's Docker image from tag v3.6.10 and running the supplied /tmp/dyn.lisp check. Read the Docker image build configuration and how the pgloader command starts SBCL, then identify the intended dynamic-space-size setting. Done means the image reports the corrected dynamic space size while retaining the existing command behavior.