Fix regex escaping consistency in acceptance test

Co-authored-by: tobio <444668+tobio@users.noreply.github.com>

Author: Copilot

internal/kibana/connectors/acc_test.go

@@ -91,7 +91,7 @@ func TestAccResourceKibanaConnectorCasesWebhook(t *testing.T) {
 							resource.TestMatchResourceAttr("elasticstack_kibana_action_connector.test", "config", regexp.MustCompile(`\"getIncidentResponseExternalTitleKey\":\"title\"`)),
 							resource.TestMatchResourceAttr("elasticstack_kibana_action_connector.test", "config", regexp.MustCompile(`\"getIncidentUrl\":\"https://www\.elastic\.co/\"`)),
 							resource.TestMatchResourceAttr("elasticstack_kibana_action_connector.test", "config", regexp.MustCompile(`\"updateIncidentJson\":\"{}\"`)),
-							resource.TestMatchResourceAttr("elasticstack_kibana_action_connector.test", "config", regexp.MustCompile(`\"updateIncidentUrl\":\"https://www.elastic\.co/\"`)),
+							resource.TestMatchResourceAttr("elasticstack_kibana_action_connector.test", "config", regexp.MustCompile(`\"updateIncidentUrl\":\"https://www\.elastic\.co/\"`)),
 							resource.TestMatchResourceAttr("elasticstack_kibana_action_connector.test", "config", regexp.MustCompile(`\"viewIncidentUrl\":\"https://www\.elastic\.co/\"`)),
 
 							resource.TestMatchResourceAttr("elasticstack_kibana_action_connector.test", "secrets", regexp.MustCompile(`\"user\":\"user1\"`)),
@@ -132,7 +132,7 @@ func TestAccResourceKibanaConnectorCasesWebhook(t *testing.T) {
 							resource.TestMatchResourceAttr("elasticstack_kibana_action_connector.test", "config", regexp.MustCompile(`\"getIncidentResponseExternalTitleKey\":\"title\"`)),
 							resource.TestMatchResourceAttr("elasticstack_kibana_action_connector.test", "config", regexp.MustCompile(`\"getIncidentUrl\":\"https://www\.elastic\.co/\"`)),
 							resource.TestMatchResourceAttr("elasticstack_kibana_action_connector.test", "config", regexp.MustCompile(`\"updateIncidentJson\":\"{}\"`)),
-							resource.TestMatchResourceAttr("elasticstack_kibana_action_connector.test", "config", regexp.MustCompile(`\"updateIncidentUrl\":\"https://www.elastic\.co/\"`)),
+							resource.TestMatchResourceAttr("elasticstack_kibana_action_connector.test", "config", regexp.MustCompile(`\"updateIncidentUrl\":\"https://www\.elastic\.co/\"`)),
 							resource.TestMatchResourceAttr("elasticstack_kibana_action_connector.test", "config", regexp.MustCompile(`\"viewIncidentUrl\":\"https://www\.elastic\.co/\"`)),
 							// Verify that null headers field is removed from the config
 							func(s *terraform.State) error {