cluster: Sanction redpanda.leaders.preference on invalid license

Implements CORE-8042 - Sanction-22

If there is no valid license, request to create a topic with
redpanda.leaders.preference enabled will be rejected.

src/v/cluster/topics_frontend.cc

@@ -31,6 +31,7 @@
 #include "cluster/topic_recovery_validator.h"
 #include "cluster/types.h"
 #include "config/configuration.h"
+#include "config/leaders_preference.h"
 #include "data_migration_types.h"
 #include "features/feature_table.h"
 #include "fwd.h"
@@ -81,6 +82,13 @@ std::vector<std::string_view> get_enterprise_features(
     if (cfg.is_schema_id_validation_enabled()) {
         features.emplace_back("schema ID validation");
     }
+    if (const auto leaders_pref = cfg.cfg.properties.leaders_preference;
+        leaders_pref
+        && config::shard_local_cfg()
+             .default_leaders_preference.check_restricted(
+               leaders_pref.value())) {
+        features.emplace_back("leadership pinning");
+    }
     return features;
 }
 

src/v/kafka/server/tests/create_topics_test.cc

@@ -7,6 +7,7 @@
 // the Business Source License, use of this software will be governed
 // by the Apache License, Version 2.0
 
+#include "config/leaders_preference.h"
 #include "container/fragmented_vector.h"
 #include "kafka/protocol/create_topics.h"
 #include "kafka/protocol/metadata.h"
@@ -463,7 +464,13 @@ FIXTURE_TEST(unlicensed_rejected, create_topic_fixture) {
       with(kafka::topic_property_record_key_schema_id_validation_compat, true),
       with(kafka::topic_property_record_value_schema_id_validation, true),
       with(
-        kafka::topic_property_record_value_schema_id_validation_compat, true)};
+        kafka::topic_property_record_value_schema_id_validation_compat, true),
+      // pin_leadership_props
+      with(
+        kafka::topic_property_leaders_preference,
+        config::leaders_preference{
+          .type = config::leaders_preference::type_t::racks,
+          .racks = {model::rack_id{"A"}}})};
 
     auto client = make_kafka_client().get();
     client.connect().get();