[Release] `dev/release/release.sh` uploads not only source archive but also binary artifacts

[kou]

Describe the bug, including details regarding any error messages, version, and platform.

arrow-java/dev/release/release.sh

Lines 51 to 68 in a5b8604

	release_id="apache-arrow-java-${version}"
	dist_url="https://dist.apache.org/repos/dist/release/arrow"
	dist_base_dir="dev/release/dist"
	dist_dir="${dist_base_dir}/${release_id}"
	echo "Checking out ${dist_url}"
	rm -rf "${dist_base_dir}"
	svn co --depth=empty "${dist_url}" "${dist_base_dir}"
	gh release download "${rc_tag}" \
	--repo "${repository}" \
	--dir "${dist_dir}" \
	--skip-existing
	echo "Uploading to release/"
	pushd "${dist_base_dir}"
	svn add "${release_id}"
	svn ci -m "Apache Arrow Java ${version}"
	popd
	rm -rf "${dist_base_dir}"

uploads all assets in https://github.com/apache/arrow-java/releases/tag/v18.2.0-rc5 to https://dist.apache.org/repos/dist/release/arrow/ .