tests/scrub: deactivate osd-scrub-dump stand-alone test

as the scrub reservation changes had made it obsolete.
Note - it is not an issue of fixing the test, but rather
that the tested functionality is no longer there.

Signed-off-by: Ronen Friedman <rfriedma@redhat.com>

Author: ronen-fr

qa/standalone/scrub/osd-scrub-dump.sh

@@ -15,13 +15,20 @@
 # GNU Library Public License for more details.
 #
 
+
+# 30.11.2023: the test is now disabled, as the reservation mechanism has been
+# thoroughly reworked and the test is no longer valid.  The test is left here
+# as a basis for a new set of primary vs. replicas scrub activation tests.
+
 source $CEPH_ROOT/qa/standalone/ceph-helpers.sh
 
 MAX_SCRUBS=4
 SCRUB_SLEEP=3
 POOL_SIZE=3
 
 function run() {
+    echo "This test is disabled"
+    return 0
     local dir=$1
     shift
     local CHUNK_MAX=5