ARROW-12192: [Website] Use downloadable URL for archive download

Closes #99 from kou/download-url and squashes the following commits:

8b0f0d946 <Sutou Kouhei> Use redirect link
7f742dae5 <Sutou Kouhei>  Use downloads.apache.org for downloading source tar

Lead-authored-by: Sutou Kouhei <kou@clear-code.com>
Co-authored-by: Sutou Kouhei <kou@cozmixng.org>
Signed-off-by: Sutou Kouhei <kou@clear-code.com>
diff --git a/_data/versions.yml b/_data/versions.yml
index 83ca9a1..7481efc 100644
--- a/_data/versions.yml
+++ b/_data/versions.yml
@@ -22,9 +22,8 @@
   git-tag: 'd613aa68789288d3503dfbd8376a41f2d28b6c9d'
   github-tag-link: 'https://github.com/apache/arrow/releases/tag/apache-arrow-3.0.0'
   release-notes: 'https://arrow.apache.org/release/3.0.0.html'
-  mirrors: 'https://www.apache.org/dyn/closer.lua/arrow/arrow-3.0.0/'
-  tarball_name: 'apache-arrow-3.0.0.tar.gz'
-  mirrors-tar: 'https://www.apache.org/dyn/closer.lua/arrow/arrow-3.0.0/apache-arrow-3.0.0.tar.gz'
+  tarball-name: 'apache-arrow-3.0.0.tar.gz'
+  tarball-url: 'https://www.apache.org/dyn/closer.lua?action=download&filename=arrow/arrow-3.0.0/apache-arrow-3.0.0.tar.gz'
   java-artifacts: 'http://search.maven.org/#search%7Cga%7C1%7Cg%3A%22org.apache.arrow%22%20AND%20v%3A%223.0.0%22'
   asc: 'https://downloads.apache.org/arrow/arrow-3.0.0/apache-arrow-3.0.0.tar.gz.asc'
   sha256: 'https://downloads.apache.org/arrow/arrow-3.0.0/apache-arrow-3.0.0.tar.gz.sha256'
diff --git a/install.md b/install.md
index f19cadd..9b03ef6 100644
--- a/install.md
+++ b/install.md
@@ -34,7 +34,7 @@
 
 ### Source Release
 
-* **Source Release**: [{{site.data.versions['current'].tarball_name}}][6]
+* **Source Release**: [{{site.data.versions['current'].tarball-name}}][6]
 * **Verification**: [asc signature][13], [sha256 checksum][14], [sha512 checksum][15], ([verification instructions][12])
 * [Git tag {{site.data.versions['current'].git-tag}}][2]
 * [GPG keys for release signatures][11]
@@ -227,11 +227,10 @@
 using Pkg; Pkg.add("Arrow")
 ```
 
-[1]: {{site.data.versions['current'].mirrors}}
 [2]: {{site.data.versions['current'].github-tag-link}}
 [4]: {{site.data.versions['current'].java-artifacts}}
 [5]: https://conda-forge.github.io
-[6]: {{site.data.versions['current'].mirrors-tar}}
+[6]: {{site.data.versions['current'].tarball-url}}
 [10]: {{ site.baseurl }}/release/{{site.data.versions['current'].number}}.html
 [11]: https://downloads.apache.org/arrow/KEYS
 [12]: https://www.apache.org/dyn/closer.cgi#verify