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

[kou]

Describe the enhancement requested

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

Can we use the current release version number instead of <arrow.version>9.0.0</arrow.version> 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 apache/arrow#35589 (comment) .

Component(s)

Documentation, Java