Merge pull request #13764 from vbotbuildovich/backport-pr-13749-v22.3…

….x-180

[v22.3.x] ducky/partition_balancer_test: fix full_node_test

tests/rptest/tests/partition_balancer_test.py

@@ -662,6 +662,12 @@ def is_ready_and_stable(s):
             nonlocal ready_appeared_at
             if s["status"] == "ready":
                 if ready_appeared_at is None:
+                    # Disable leader balancer after partition balancer has finished its work,
+                    # because leadership transfers will create new segments that can cause disk
+                    # usage to go over limit again even after we've verified that everything
+                    # is stable.
+                    self.redpanda.set_cluster_config(
+                        {"enable_leader_balancer": False})
                     ready_appeared_at = time.time()
                 else:
                     # ready status is stable for 11 seconds, should be enough for 3 ticks to pass