fix(#132): E2E tests before hook was failing

docker/Dockerfile

@@ -49,7 +49,7 @@ RUN set -x && \
     . /root/dynenv && \
     cargo build --locked $CARGO_OPTIONS --target "$RUST_ARCH_TRIPLET" && \
     mkdir -p build && \
-    mv target/$RUST_ARCH_TRIPLET/$TARGET_FOLDER/duniter build/
+    cp target/$RUST_ARCH_TRIPLET/$TARGET_FOLDER/duniter build/
 
 # Run tests if requested, expted when cross-building
 ARG cucumber=0