Cleanup of loadbalancers with force set

Related-Bug: PRODX-21132
Change-Id: I47c81210e68d828e27d649be3709284ba98a6fd8
(cherry picked from commit 3e8249bf55ea56aa8fc348145972f02aa5cd0618)
(cherry picked from commit 95392d92036702d8ae0cd95588f06debcc4ce94c)
diff --git a/octavia_tempest_plugin/config.py b/octavia_tempest_plugin/config.py
index 9e259d3..58ddf13 100644
--- a/octavia_tempest_plugin/config.py
+++ b/octavia_tempest_plugin/config.py
@@ -294,6 +294,9 @@
                      "specified in the tempest configuration."),
     cfg.BoolOpt('prometheus_listener_enabled', default=True,
                 help="Whether the PROMETHEUS listener tests will run."),
+    cfg.BoolOpt('force_cleanup_enabled',
+                default=False,
+                help="Whether to delete loadbalancers with force on cleanup."),
 ]
 
 # Extending this enforce_scope group defined in tempest