ref-manual: update tested and supported distros

According to currently active workers
https://autobuilder.yoctoproject.org/typhoon/#/workers
and to the "workers_prev_releases" definition
in https://git.yoctoproject.org/yocto-autobuilder2/tree/config.py

Also correct the text saying that SANITY_TESTED_DISTROS
lists currently tested distros.

Also replace AlmaLinux 8.8 and 9.2 by just AlmaLinux 8 and 9,
as we update our workers anyway.

(From yocto-docs rev: 79a6ec6847cdfc40d75def36993a40fec853a7a1)

Signed-off-by: Michael Opdenacker <michael.opdenacker@bootlin.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>

documentation/ref-manual/system-requirements.rst

@@ -41,20 +41,17 @@ supported on the following distributions:
 
 -  Ubuntu 22.04 (LTS)
 
--  Fedora 37
+-  Fedora 38
 
 -  Debian GNU/Linux 11.x (Bullseye)
 
--  AlmaLinux 8.8
+-  AlmaLinux 8
 
-The following distribution versions are still tested (being listed
-in :term:`SANITY_TESTED_DISTROS`), even though the organizations
-publishing them no longer make updates publicly available:
+The following distribution versions are still tested, even though the
+organizations publishing them no longer make updates publicly available:
 
 -  Ubuntu 18.04 (LTS)
 
--  OpenSUSE Leap 15.3
-
 Note that the Yocto Project doesn't have access to private updates
 that some of these versions may have. Therefore, our testing has
 limited value if you have access to such updates.
@@ -72,18 +69,18 @@ tested on former revisions of "&DISTRO_NAME;", but no longer are:
 
 -  Fedora 36
 
+-  Fedora 37
+
 -  CentOS 7.x
 
 -  CentOS 8.x
 
--  AlmaLinux 8.5
-
--  AlmaLinux 8.7
-
 -  Debian GNU/Linux 9.x (Stretch)
 
 -  Debian GNU/Linux 10.x (Buster)
 
+-  OpenSUSE Leap 15.3
+
 .. note::
 
    -  While the Yocto Project Team attempts to ensure all Yocto Project