Correct repo versiion

bash/kubuntu-skola.sh

@@ -27,7 +27,7 @@ echo "$password\n$password\n" | passwd sk4pt
 #get virtualbox
 wget https://www.virtualbox.org/download/oracle_vbox_2016.asc 
 cat oracle_vbox_2016.asc | gpg --dearmor | sudo tee /usr/share/keyrings/virtualbox.gpg > /dev/null 2>&1
-echo deb [arch=amd64 signed-by=/usr/share/keyrings/virtualbox.gpg] https://download.virtualbox.org/virtualbox/debian jammy contrib >> /etc/apt/sources.list
+echo deb [arch=amd64 signed-by=/usr/share/keyrings/virtualbox.gpg] https://download.virtualbox.org/virtualbox/debian focal contrib >> /etc/apt/sources.list
 apt update
 apt install virtualbox-7.0 -y
 apt-get autoremove virtualbox-dkms -y