fstests: debian: add duperemove dependency

Some tests such as generic/561 require duperemove to check whether a
test needs to be run or not. Add the package for debian hosts. Already
present in redhat.

These are the logs for a tmpfs run after adding the duperemove
dependency:
[   14.841609] run fstests fstestsstart/000 at 2025-06-16 18:17:35
[   16.365091] run fstests generic/561 at 2025-06-16 18:17:36
[   17.141361] run fstests fstestsdone/000 at 2025-06-16 18:17:37

cat /data/fstests-install/xfstests/results/debian13-tmpfs-default/
6.16.0-rc2/tmpfs_default/generic/561.notrun
Dedupe not supported by scratch filesystem type: tmpfs

Signed-off-by: Daniel Gomez <da.gomez@samsung.com>

Author: dagomez137

playbooks/roles/fstests/tasks/install-deps/debian/main.yml

@@ -72,6 +72,7 @@
       - nfs-common
       - xfsdump
       - cifs-utils
+      - duperemove
     state: present
     update_cache: yes
   tags: [ 'fstests', 'deps' ]