fix: broken CI

- always install wkhtmltopdf
- remove specific version on mariadb-client

.github/helper/install.sh

@@ -6,7 +6,7 @@ cd ~ || exit
 
 sudo apt update
 sudo apt remove mysql-server mysql-client
-sudo apt install libcups2-dev redis-server mariadb-client-10.6
+sudo apt install libcups2-dev redis-server mariadb-client
 
 pip install frappe-bench
 
@@ -51,13 +51,9 @@ fi
 
 
 install_whktml() {
-    if [ "$(lsb_release -rs)" = "22.04" ]; then
-        wget -O /tmp/wkhtmltox.deb https://github.com/wkhtmltopdf/packaging/releases/download/0.12.6.1-2/wkhtmltox_0.12.6.1-2.jammy_amd64.deb
-        sudo apt install /tmp/wkhtmltox.deb
-    else
-        echo "Please update this script to support wkhtmltopdf for $(lsb_release -ds)"
-        exit 1
-    fi
+    wget -O /tmp/wkhtmltox.deb https://github.com/wkhtmltopdf/packaging/releases/download/0.12.6.1-2/wkhtmltox_0.12.6.1-2.jammy_amd64.deb
+    sudo apt install /tmp/wkhtmltox.deb
+
 }
 install_whktml &
 wkpid=$!