[Docs][Java] Install document uses <arrow.version>9.0.0</arrow.version>

### Describe the enhancement requested

https://arrow.apache.org/docs/java/install.html

Can we use the current release version number instead of `9.0.0` automatically?

We may be able to use Sphinx's (reST's) substitution feature for this.
See also:
* https://www.sphinx-doc.org/en/master/usage/restructuredtext/basics.html#substitutions
* https://www.sphinx-doc.org/en/master/usage/restructuredtext/roles.html#default-substitutions

Reported by @headius in https://github.com/apache/arrow/issues/35589#issuecomment-1548095081 .

### Component(s)

Documentation, Java

Start with the Java installation page at https://arrow.apache.org/docs/java/install.html and review the linked Sphinx substitution documentation. Trace where the release version is defined and make the rendered page use the current release instead of the hardcoded 9.0.0; confirm the generated documentation shows the current version.

Written by the indexing model from the issue text.