Include support/ directory in Docker base image

ober

a8413de408aa396600cde15770445887a9e184b2

diff --git a/Dockerfile b/Dockerfile
index bee5299..c6a2e89 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -98,6 +98,7 @@ RUN git clone https://github.com/ober/ChezScheme.git chez-musl-src && \
 WORKDIR /build/mine
 COPY jerbuild.ss /build/mine/jerboa/jerbuild.ss
 COPY lib /build/mine/jerboa/lib
+COPY support /build/mine/jerboa/support
 COPY jerboa-native-rs /build/mine/jerboa/jerboa-native-rs
 
 # ── Pre-build libjerboa_native.a (musl, no duckdb) ───────────────────────────