Invert check for whether to include casper since the "yes" list is now much shorter than the "no" list

debian/changelog

@@ -1,3 +1,10 @@
+livecd-rootfs (24.04.62) UNRELEASED; urgency=medium
+
+  * Invert check for whether to include casper since the "yes" list is now
+    much shorter than the "no" list
+
+ -- Steve Langasek <steve.langasek@ubuntu.com>  Mon, 18 Mar 2024 14:44:32 -0700
+
 livecd-rootfs (24.04.61) noble; urgency=medium
 
   * Fix the UC24 builds: use --snap instead of --extra-snaps.

live-build/auto/config

@@ -558,11 +558,7 @@ case $IMAGEFORMAT in
 		;;
 	*)
 		case $PROJECT in
-			ubuntu-server|ubuntu-wsl|ubuntu-oem|ubuntu|\
+			kubuntu|lubuntu|ubuntu-unity)
-			ubuntu-budgie|ubuntustudio-dvd|edubuntu|ubuntucinnamon|xubuntu|\
-		        ubuntukylin|ubuntu-mate)
-				;;
-			*)
 				add_package live casper
 				;;
 		esac