### Description

Lucene 9.8 introduces the new `void LeafCollector#collect(DocIdStream stream)` API. We should take advantage of it in `LuceneCountOperator` by incrementing the count by `stream.count()`.
x-pack/plugin/esql/compute/src/main/java/org/elasticsearch/compute/lucene/LuceneCountOperator.java
@Override
        public int taskConcurrency() {
            return taskConcurrency;
        }
        public int limit() {
            return limit;
        }
        @Override
        public String describe() {
            return "LuceneCountOperator[dataPartitioning = " + dataPartitioning + ", limit = " + limit + "]";
        }
    }
    public LuceneCountOperator(LuceneSliceQueue sliceQueue, int limit) {
        super(PAGE_SIZE, sliceQueue);
        this.remainingDocs = limit;
        this.leafCollector = new LeafCollector() {
            @Override
            public void setScorer(Scorable scorer) {}
            @Override
            public void collect(int doc) {
                if (remainingDocs > 0) {
                    remainingDocs--;
                    totalHits++;
                }
            }
        };
    }
    @Override
    public boolean isFinished() {
        return doneCollecting || remainingDocs == 0;