CT jenkins, x2go,pihole: Fixes for Debian 13

jenkins: Added missing packages  &  Fixed broken curl for getting current version  of GoLang
pihole: will now run a Gravity update on first setup,  to avoid errors  in the webUI
Readme  fixes for: collabora, domoticz & docker

CT-Files/pihole/Scripts/FirstRun.sh

@@ -13,5 +13,6 @@ done
 sed -i "/upstreams = \[/,/\]/c\upstreams = [ \"$UpStreamDNS1\" , \"$UpStreamDNS2\" ]" /etc/pihole/pihole.toml
 #Finialize instaltation
 /etc/.pihole/automated\ install/basic-install.sh --reconfigure --unattended
+pihole updateGravity
 #Set password
-pihole setpassword
+pihole setpassword