fix: Use blkid instead of lsblk in tests to get partition table

Older versions of lsblk cannot print the PTTYPE column.

tests/tests_lvm_pool_members.yml

@@ -110,7 +110,7 @@
                 disks: "{{ [unused_disks[0]] }}"
 
         - name: Get the partition table type on disk removed from the VG
-          command: lsblk -o PTTYPE --noheadings --nodeps /dev/{{ unused_disks[1] }}
+          shell: blkid -p -ovalue -s PTTYPE /dev/{{ unused_disks[1] }} || /bin/true
           register: storage_test_removed_pttype
           changed_when: false
 
@@ -289,7 +289,7 @@
                     size: "{{ volume_size }}"
 
         - name: Get the partition table type on disk removed from the VG
-          command: lsblk -o PTTYPE --noheadings --nodeps /dev/{{ unused_disks[0] }}
+          shell: blkid -p -ovalue -s PTTYPE /dev/{{ unused_disks[0] }} || /bin/true
           register: storage_test_removed_pttype
           changed_when: false