Update dolibarr-install.sh (#5127)

On the sourceforge page Dolibar v18.0.7 was modified after v21.0.1 even though v21.0.1 is the latest version. The original line get the lastest modified folder, this line gets the largest numbered folder.

https://sourceforge.net/projects/dolibarr/files/Dolibarr%20installer%20for%20Debian-Ubuntu%20%28DoliDeb%29/

Author: tjcomserv

install/dolibarr-install.sh

@@ -32,7 +32,7 @@ msg_ok "Set up database"
 
 msg_info "Setup Dolibarr"
 BASE="https://sourceforge.net/projects/dolibarr/files/Dolibarr%20installer%20for%20Debian-Ubuntu%20(DoliDeb)/"
-RELEASE=$(curl -fsSL "$BASE" | grep -oP '(?<=/Dolibarr%20installer%20for%20Debian-Ubuntu%20%28DoliDeb%29/)[^/"]+' | head -n1)
+RELEASE=$(curl -fsSL "$BASE" | grep -oP '(?<=/Dolibarr%20installer%20for%20Debian-Ubuntu%20%28DoliDeb%29/)\d+(\.\d+)+(?=/)' | sort -V | tail -n1)
 FILE=$(curl -fsSL "${BASE}${RELEASE}/" | grep -oP 'dolibarr_[^"]+_all.deb' | head -n1)
 curl -fsSL "https://netcologne.dl.sourceforge.net/project/dolibarr/Dolibarr%20installer%20for%20Debian-Ubuntu%20(DoliDeb)/${RELEASE}/${FILE}?viasf=1" -o ""$FILE""
 echo "dolibarr dolibarr/reconfigure-webserver multiselect apache2" | debconf-set-selections