CI: Remove deprecated Fedora 41

Fedora 41 was deprecated on Dec 15 2025.  Remove it from CI tests.

Reviewed-by: Rob Norris <robn@despairlabs.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: Tony Hutter <hutter2@llnl.gov>
Closes #18261

.github/workflows/scripts/qemu-2-start.sh

@@ -78,11 +78,6 @@ case "$OS" in
     OPTS[0]="--boot"
     OPTS[1]="uefi=on"
     ;;
-  fedora41)
-    OSNAME="Fedora 41"
-    OSv="fedora-unknown"
-    URL="https://download.fedoraproject.org/pub/fedora/linux/releases/41/Cloud/x86_64/images/Fedora-Cloud-Base-Generic-41-1.4.x86_64.qcow2"
-    ;;
   fedora42)
     OSNAME="Fedora 42"
     OSv="fedora-unknown"