[3.4] Add RHEL 9 (+ derivatives) install guide (#5721) (#5755)

* rhel->rhel8 rename of the include file for install guides

* Add RHEL 9

* Add Alma, Oracle, and Rocky Linux 9 pre-emptively

* Add Alma Linux 9 EOL date.
(cherry picked from commit ee69f6e17f)

Co-authored-by: Jakub Kuczys <6032823+jack1142@users.noreply.github.com>

docs/install_guides/index.rst

@@ -14,6 +14,7 @@ we recommend **Ubuntu 22.04 LTS**.
    windows
    mac
    alma-linux-8
+   alma-linux-9
    arch
    centos-7
    centos-stream-8
@@ -24,10 +25,13 @@ we recommend **Ubuntu 22.04 LTS**.
    opensuse-leap-15
    opensuse-tumbleweed
    oracle-linux-8
+   oracle-linux-9
    raspberry-pi-os-10
    raspberry-pi-os-11
    rhel-8
+   rhel-9
    rocky-linux-8
+   rocky-linux-9
    ubuntu-1804
    ubuntu-2004
    ubuntu-2204