Update PHP install instructions to use php8.2 packages

Author: umedsohibov

_docs/developer/testing/index.md

@@ -66,7 +66,7 @@ pecl install xdebug
 For Ubuntu:
 
 ```bash
-sudo apt-get install php-cli php-mbstring php-xml php-xdebug php-curl php-zip php-sqlite3 composer
+sudo apt-get install php8.2-cli php8.2-mbstring php8.2-xml php8.2-xdebug php8.2-curl php8.2-zip php8.2-sqlite3 composer
 sudo apt-get install python3 python3-pip
 ```
 

_docs/developer/testing/install_php.md

@@ -12,7 +12,7 @@ you will need to have PHP installed on your host machine first.
 
 ```bash
 sudo apt-get update
-sudo apt-get install -y php php-curl php-xml php-mbstring 
+sudo apt-get install -y php8.2 php8.2-cli php8.2-curl php8.2-xml php8.2-mbstring 
 ```
 
 *You may need to install the PHP PPA for certain versions of PHP*

_docs/sysadmin/configuration/registration_feed.md

@@ -100,7 +100,7 @@ However, these instructions will focus on Ubuntu server 20.04 which provides PHP
 
 1. If they haven't already been installed, install PHP and the required extensions.
 ```bash
-$ sudo apt-get install php php-pgsql
+$ sudo apt-get install php8.2 php8.2-pgsql
 ```
 2. Ensure the extensions are active.
 ```bash