[nanbield][PATCH] ref-manual: update tested and supported distros

[michael.opdenacker@bootlin.com]

From: Michael Opdenacker <michael.opdenacker@bootlin.com>

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.

Signed-off-by: Michael Opdenacker <michael.opdenacker@bootlin.com>
---
 .../ref-manual/system-requirements.rst        | 21 ++++++++++---------
 1 file changed, 11 insertions(+), 10 deletions(-)

diff --git a/documentation/ref-manual/system-requirements.rst b/documentation/ref-manual/system-requirements.rst
index e1ff51c859..4dabb67ca2 100644
--- a/documentation/ref-manual/system-requirements.rst
+++ b/documentation/ref-manual/system-requirements.rst
@@ -62,12 +62,8 @@ supported on the following distributions:
 
 -  Ubuntu 22.04 (LTS)
 
--  Fedora 37
-
 -  Fedora 38
 
--  CentOS Stream 8
-
 -  Debian GNU/Linux 11 (Bullseye)
 
 -  Debian GNU/Linux 12 (Bookworm)
@@ -78,15 +74,16 @@ supported on the following distributions:
 
 -  AlmaLinux 9.2
 
-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:
+-  Rocky 9
+
+The following distribution versions are still tested, even though the
+organizations publishing them no longer make updates publicly available:
 
 -  Ubuntu 18.04 (LTS)
 
--  Ubuntu 22.10
+-  Ubuntu 23.04
 
--  OpenSUSE Leap 15.3
+-  CentOS Stream 8
 
 Note that the Yocto Project doesn't have access to private updates
 that some of these versions may have. Therefore, our testing has
@@ -95,7 +92,11 @@ limited value if you have access to such updates.
 Finally, here are the distribution versions which were previously
 tested on former revisions of "&DISTRO_NAME;", but no longer are:
 
-*This list is currently empty*
+-  Ubuntu 22.10
+
+-  Fedora 37
+
+-  OpenSUSE Leap 15.3
 
 .. note::
 
-- 
2.34.1