Update kavita.sh

- default Debian 12
-  set update path

ct/kavita.sh

@@ -23,7 +23,7 @@ var_disk="8"
 var_cpu="2"
 var_ram="2048"
 var_os="debian"
-var_version="11"
+var_version="12"
 variables
 color
 catch_errors
@@ -54,8 +54,13 @@ function update_script() {
 header_info
 if [[ ! -d /opt/Kavita ]]; then msg_error "No ${APP} Installation Found!"; exit; fi
 msg_info "Updating $APP LXC"
-apt-get update &>/dev/null
-apt-get -y upgrade &>/dev/null
+systemctl stop kavita
+RELEASE=$(curl -s https://api.github.com/repos/Kareadita/Kavita/releases/latest | grep "tag_name" | awk '{print substr($2, 2, l>
+tar -xvzf <(curl -fsSL https://github.com/Kareadita/Kavita/releases/download/$RELEASE/kavita-linux-x64.tar.gz) &>/dev/null
+rm -rf Kavita/config
+cp -r Kavita/* /opt/Kavita
+rm -rf Kavita
+systemctl start kavita
 msg_ok "Updated $APP LXC"
 exit
 }