[doc] Add CentOS 9 Stream to supported

Basically we fix list of supported distros in docs and inside code.

Change-Id: Ice35b700ed6ca79a00180a500b8e2b985dbf830b

deploy-guide/source/deploymenthost.rst

@@ -30,6 +30,7 @@ hosts:
 * `Ubuntu server 20.04 (Focal Fossa) LTS 64-bit <http://releases.ubuntu.com/20.04/>`_
 * `Debian 11 (Bullseye) LTS 64-bit <https://www.debian.org/distrib/>`_
 * `Centos 8 Stream 64-bit <http://isoredirect.centos.org/centos/8-stream/isos/x86_64/>`_
+* `Centos 9 Stream 64-bit <https://mirrors.centos.org/mirrorlist?path=/9-stream/BaseOS/x86_64/iso/>`_
 * `Rocky Linux 8 64-bit <http://dl.rockylinux.org/pub/rocky/8/isos/x86_64/>`_
 
 Configure at least one network interface to access the Internet or suitable

deploy-guide/source/overview-requirements.rst

@@ -22,6 +22,8 @@ following minimum requirements:
 
   * Centos 8 Stream
 
+  * Centos 9 Stream
+
   * Rocky Linux 8
 
   * Linux kernel version ``3.10.0`` or later.
@@ -32,7 +34,7 @@ following minimum requirements:
 * Network Time Protocol (NTP) client for time synchronization (such as
   ``ntpd`` or ``chronyd``)
 
-* Python 3.6.*x* or 3.7.*x*
+* Python 3.6.*x* or 3.8.*x*
 
 * en_US.UTF-8 as the locale
 

deploy-guide/source/targethosts-prepare.rst

@@ -13,9 +13,10 @@ target host:
 
 * Ubuntu server 22.04 (Focal Fossa) LTS 64-bit (Experimental support in the Yoga release)
 * Ubuntu server 20.04 (Focal Fossa) LTS 64-bit
-* Debian 10 64-bit
+* Debian 11 64-bit
 * Centos 8 Stream 64-bit
   * Derivitives: Rocky Linux
+* Centos 9 Stream 64-bit
 
 Configure at least one network interface to access the Internet or
 suitable local repositories.

doc/source/admin/upgrades/os-compatibility-matrix.html

@@ -19,6 +19,7 @@
         <th class="text-center">7</th>
         <th class="text-center">8</th>
         <th class="text-center">8 Stream</th>
+        <th class="text-center">9 Stream</th>
         <th class="text-center">9</th>
         <th class="text-center">10</th>
         <th class="text-center">11</th>
@@ -289,6 +290,7 @@
         <td>✘</td>
         <td>✘</td>
         <td>✔</td>
+        <td>✔</td>
         <td>✘</td>
         <td>✘</td>
         <td>✔</td>
@@ -307,5 +309,6 @@
         <td>✘</td>
         <td>✘</td>
         <td>✘</td>
+        <td>✘</td>
     </tr>
 </table>