fix(2971): spublish typo fix (redis#2972) (redis#2975)

fixing redis#2971

Co-authored-by: Jedrzej Krauze <[email protected]>

src/main/java/io/lettuce/core/pubsub/RedisPubSubReactiveCommandsImpl.java

@@ -161,7 +161,7 @@ public Mono<Map<K, Long>> pubsubShardNumsub(K... shardChannels) {
 
     @Override
     public Mono<Long> spublish(K shardChannel, V message) {
-        return createMono(() -> commandBuilder.publish(shardChannel, message));
+        return createMono(() -> commandBuilder.spublish(shardChannel, message));
     }
 
     @Override