Adds a tip that explains how to install other 9.x versions

In case someone needs to install an older version of the Elasticsearch 9.x series, I'm adding a tip admonition to explain that they can replace the versions in the code examples with the version that they want. I'm using variables so that this guidance isn't hardcoded and doesn't require version bumps in the future.
Fixes #2234

Author: yetanothertw

deploy-manage/deploy/self-managed/install-elasticsearch-from-archive-on-linux-macos.md

@@ -56,7 +56,9 @@ cd elasticsearch-{{version.stack}}/ <2>
 1. Compares the SHA of the downloaded `.tar.gz` archive and the published checksum, which should output `elasticsearch-<version>-linux-x86_64.tar.gz: OK`.
 2. This directory is known as `$ES_HOME`.
 
-
+:::{tip}
+You can install another version of {{es}} {{version.stack.base | M }} by replacing {{version.stack}} with the version number you want. For example, you can replace {{version.stack}} with {{version.stack.base}}.
+:::
 
 ### MacOS [install-macos]
 
@@ -77,7 +79,7 @@ cd elasticsearch-{{version.stack}}/ <2>
 
 Apple’s rollout of stricter notarization requirements affected the notarization of the {{version.stack}} {{es}} artifacts. If macOS displays a dialog when you first run {{es}} that interrupts it, then you need to take an action to allow it to run.
 
-To prevent Gatekeeper checks on the {{es}} files, run the following command on the downloaded .tar.gz archive or the directory to which was extracted:
+To prevent Gatekeeper checks on the {{es}} files, run the following command on the downloaded `.tar.gz` archive or the directory to which it was extracted:
 
 ```sh
 xattr -d -r com.apple.quarantine <archive-or-directory>
@@ -86,6 +88,10 @@ xattr -d -r com.apple.quarantine <archive-or-directory>
 Alternatively, you can add a security override by following the instructions in the *If you want to open an app that hasn’t been notarized or is from an unidentified developer* section of [Safely open apps on your Mac](https://support.apple.com/en-us/HT202491).
 ::::
 
+:::{tip}
+You can install another version of {{es}} {{version.stack.base | M }} by replacing {{version.stack}} with the version number you want. For example, you can replace {{version.stack}} with {{version.stack.base}}.
+:::
+
 ## Step 2: Enable automatic creation of system indices [targz-enable-indices]
 
 :::{include} _snippets/enable-auto-indices.md