ARROW-12193: [Dev][Release] Use downloadable URL for archive download

This depends on ARROW-12192: https://github.com/apache/arrow-site/pull/99

Closes #9885 from kou/release-post-website-download

Lead-authored-by: Sutou Kouhei <kou@clear-code.com>
Co-authored-by: Sutou Kouhei <kou@cozmixng.org>
Signed-off-by: Neal Richardson <neal.p.richardson@gmail.com>
diff --git a/dev/release/post-03-website.sh b/dev/release/post-03-website.sh
index 2483dfe..b427142 100755
--- a/dev/release/post-03-website.sh
+++ b/dev/release/post-03-website.sh
@@ -242,8 +242,8 @@
   github-tag-link: 'https://github.com/apache/arrow/releases/tag/${git_tag}'
   release-notes: 'https://arrow.apache.org/release/${version}.html'
   mirrors: 'https://www.apache.org/dyn/closer.lua/arrow/arrow-${version}/'
-  tarball_name: 'apache-arrow-${version}.tar.gz'
-  mirrors-tar: 'https://www.apache.org/dyn/closer.lua/arrow/arrow-${version}/apache-arrow-${version}.tar.gz'
+  tarball-name: 'apache-arrow-${version}.tar.gz'
+  tarball-url: 'https://www.apache.org/dyn/closer.lua?action=download&filename=arrow/arrow-${version}/apache-arrow-${version}.tar.gz'
   java-artifacts: 'http://search.maven.org/#search%7Cga%7C1%7Cg%3A%22org.apache.arrow%22%20AND%20v%3A%22${version}%22'
   asc: '${apache_download_url}/arrow/arrow-${version}/apache-arrow-${version}.tar.gz.asc'
   sha256: '${apache_download_url}/arrow/arrow-${version}/apache-arrow-${version}.tar.gz.sha256'