rootfs: ltp: Update to the 20250930 release

LTP has done a new release, let's update to it. Since we started using Kirk
it has actually become the default LTP runner and is also included as a
submodule in the LTP git, however we don't currently install or use any of
the other submodules LTP has so save switching over to that for a separate
change. We may also want to update Kirk more aggressively for some reason
in future.

Signed-off-by: Mark Brown <[email protected]>

Author: broonie

config/rootfs/debos/scripts/bookworm-ltp.sh

@@ -5,7 +5,7 @@
 set -e
 
 LTP_URL="https://github.com/linux-test-project/ltp.git"
-LTP_SHA=20250530
+LTP_SHA=20250930
 
 # Version of Kirk to install
 KIRK_VERSION=v2.3