[Bug] Producer will stuck in Send() when a message chunk number larger than MaxPendingMessages

#### Expected behavior
Producer should not stuck in Send() function

#### Actual behavior
Producer stuck in Send() function and cannot recover

#### Steps to reproduce
This test case is similar to the existed `TestChunkBlockIfQueueFull` and I remove send() ctx timeout
```Go
func TestChunkBlockIfQueueFull(t *testing.T) {
sLogger := slog.New(slog.NewTextHandler(os.Stdout, &slog.HandlerOptions{Level: slog.LevelDebug}))
client, err := NewClient(ClientOptions{
URL: lookupURL,
Logger: log.NewLoggerWithSlog(sLogger),
})
if err != nil {
t.Fatal(err)
}

topic := newTopicName()

producer, err := client.CreateProducer(ProducerOptions{
Name: "test",
Topic: topic,
EnableChunking: true,
DisableBatching: true,
MaxPendingMessages: 10,
ChunkMaxMessageSize: 10,
})
assert.NoError(t, err)
assert.NotNil(t, producer)
defer producer.Close()

ctx := context.Background()
_, err = producer.Send(ctx, &ProducerMessage{
Payload: createTestMessagePayload(101),
})
assert.Error(t, err)
}
```

Output:
```
=== RUN TestChunkBlockIfQueueFull
time=2025-12-11T12:08:49.514+08:00 level=DEBUG msg="Getting pooled connection" logicalAddr=pulsar://localhost:6650 physicalAddr=pulsar://localhost:6650
time=2025-12-11T12:08:49.514+08:00 level=DEBUG msg="Wait until connection is ready state=Initializing" remote_addr=pulsar://localhost:6650
time=2025-12-11T12:08:49.514+08:00 level=INFO msg="Connecting to broker" remote_addr=pulsar://localhost:6650
time=2025-12-11T12:08:49.515+08:00 level=INFO msg="TCP connection established" remote_addr=pulsar://localhost:6650 local_addr=127.0.0.1:49974
time=2025-12-11T12:08:49.516+08:00 level=DEBUG msg="Write data: 49" remote_addr=pulsar://localhost:6650 local_addr=127.0.0.1:49974
time=2025-12-11T12:08:49.517+08:00 level=DEBUG msg="Got MaxMessageSize from handshake response:5242880" remote_addr=pulsar://localhost:6650 local_addr=127.0.0.1:49974
time=2025-12-11T12:08:49.517+08:00 level=INFO msg="Connection is ready" remote_addr=pulsar://localhost:6650 local_addr=127.0.0.1:49974
time=2025-12-11T12:08:49.517+08:00 level=DEBUG msg="Connection run starting with request capacity=10 queued=0" remote_addr=pulsar://localhost:6650 local_addr=127.0.0.1:49974
time=2025-12-11T12:08:49.517+08:00 level=DEBUG msg="Write data: 63" remote_addr=pulsar://localhost:6650 local_addr=127.0.0.1:49974
time=2025-12-11T12:08:49.518+08:00 level=DEBUG msg="Got command! type:PARTITIONED_METADATA_RESPONSE partitionMetadataResponse:{partitions:0 request_id:1 response:Success} with payload size: 0 maxMsgSize: 5242880" remote_addr=pulsar://localhost:6650 local_addr=127.0.0.1:49974
time=2025-12-11T12:08:49.518+08:00 level=DEBUG msg="Received command: type:PARTITIONED_METADATA_RESPONSE partitionMetadataResponse:{partitions:0 request_id:1 response:Success} -- payload: " remote_addr=pulsar://localhost:6650 local_addr=127.0.0.1:49974
time=2025-12-11T12:08:49.519+08:00 level=DEBUG msg="Got topic{my-topic-514059306} partitioned metadata response: &{Response:type:PARTITIONED_METADATA_RESPONSE partitionMetadataResponse:{partitions:0 request_id:1 response:Success} Cnx:0xc00017e300}" serviceURL=pulsar://localhost:6650 serviceURL=pulsar://localhost:6650
time=2025-12-11T12:08:49.519+08:00 level=DEBUG msg="Getting pooled connection" logicalAddr=pulsar://localhost:6650 physicalAddr=pulsar://localhost:6650
time=2025-12-11T12:08:49.519+08:00 level=DEBUG msg="Found connection in pool key=localhost:6650-localhost:6650-0 logical_addr=pulsar://localhost:6650 physical_addr=pulsar://localhost:6650"
time=2025-12-11T12:08:49.519+08:00 level=DEBUG msg="Write data: 67" remote_addr=pulsar://localhost:6650 local_addr=127.0.0.1:49974
time=2025-12-11T12:08:49.519+08:00 level=DEBUG msg="Got command! type:LOOKUP_RESPONSE lookupTopicResponse:{brokerServiceUrl:\"pulsar://localhost:6650\" response:Connect request_id:2 authoritative:true proxy_through_service_url:true} with payload size: 0 maxMsgSize: 5242880" remote_addr=pulsar://localhost:6650 local_addr=127.0.0.1:49974
time=2025-12-11T12:08:49.519+08:00 level=DEBUG msg="Received command: type:LOOKUP_RESPONSE lookupTopicResponse:{brokerServiceUrl:\"pulsar://localhost:6650\" response:Connect request_id:2 authoritative:true proxy_through_service_url:true} -- payload: " remote_addr=pulsar://localhost:6650 local_addr=127.0.0.1:49974
time=2025-12-11T12:08:49.519+08:00 level=DEBUG msg="Got topic{persistent://public/default/my-topic-514059306} lookup response: &{Response:type:LOOKUP_RESPONSE lookupTopicResponse:{brokerServiceUrl:\"pulsar://localhost:6650\" response:Connect request_id:2 authoritative:true proxy_through_service_url:true} Cnx:0xc00017e300}" serviceURL=pulsar://localhost:6650 serviceURL=pulsar://localhost:6650
time=2025-12-11T12:08:49.520+08:00 level=DEBUG msg="Successfully looked up topic{persistent://public/default/my-topic-514059306} on broker. pulsar://localhost:6650 / - Use proxy: true" serviceURL=pulsar://localhost:6650 serviceURL=pulsar://localhost:6650
time=2025-12-11T12:08:49.520+08:00 level=DEBUG msg="Lookup result: &{pulsar://localhost:6650 pulsar://localhost:6650}" topic=persistent://public/default/my-topic-514059306
time=2025-12-11T12:08:49.520+08:00 level=DEBUG msg="The partition producer schema is nil" topic=persistent://public/default/my-topic-514059306
time=2025-12-11T12:08:49.520+08:00 level=DEBUG msg="Getting pooled connection" logicalAddr=pulsar://localhost:6650 physicalAddr=pulsar://localhost:6650
time=2025-12-11T12:08:49.520+08:00 level=DEBUG msg="Found connection in pool key=localhost:6650-localhost:6650-0 logical_addr=pulsar://localhost:6650 physical_addr=pulsar://localhost:6650"
time=2025-12-11T12:08:49.520+08:00 level=DEBUG msg="Write data: 78" remote_addr=pulsar://localhost:6650 local_addr=127.0.0.1:49974
time=2025-12-11T12:08:49.544+08:00 level=DEBUG msg="Got command! type:PRODUCER_SUCCESS producer_success:{request_id:3 producer_name:\"test\" last_sequence_id:-1 schema_version:\"\" producer_ready:true} with payload size: 0 maxMsgSize: 5242880" remote_addr=pulsar://localhost:6650 local_addr=127.0.0.1:49974
time=2025-12-11T12:08:49.544+08:00 level=DEBUG msg="Received command: type:PRODUCER_SUCCESS producer_success:{request_id:3 producer_name:\"test\" last_sequence_id:-1 schema_version:\"\" producer_ready:true} -- payload: " remote_addr=pulsar://localhost:6650 local_addr=127.0.0.1:49974
time=2025-12-11T12:08:49.544+08:00 level=INFO msg="Connected producer" topic=persistent://public/default/my-topic-514059306 cnx="127.0.0.1:49974 -> 127.0.0.1:6650" epoch=0
time=2025-12-11T12:08:49.544+08:00 level=INFO msg="Created producer" topic=persistent://public/default/my-topic-514059306 producer_name=test producerID=1 cnx="127.0.0.1:49974 -> 127.0.0.1:6650"
time=2025-12-11T12:09:19.542+08:00 level=DEBUG msg="Got command! type:PING ping:{} with payload size: 0 maxMsgSize: 5242880" remote_addr=pulsar://localhost:6650 local_addr=127.0.0.1:49974
time=2025-12-11T12:09:19.542+08:00 level=DEBUG msg="Received command: type:PING ping:{} -- payload: " remote_addr=pulsar://localhost:6650 local_addr=127.0.0.1:49974
time=2025-12-11T12:09:19.542+08:00 level=DEBUG msg="Responding to PING request" remote_addr=pulsar://localhost:6650 local_addr=127.0.0.1:49974
time=2025-12-11T12:09:19.542+08:00 level=DEBUG msg="Write data: 13" remote_addr=pulsar://localhost:6650 local_addr=127.0.0.1:49974
time=2025-12-11T12:09:19.542+08:00 level=DEBUG msg="Sending PING" remote_addr=pulsar://localhost:6650 local_addr=127.0.0.1:49974
time=2025-12-11T12:09:19.542+08:00 level=DEBUG msg="Write data: 13" remote_addr=pulsar://localhost:6650 local_addr=127.0.0.1:49974
time=2025-12-11T12:09:19.542+08:00 level=DEBUG msg="Got command! type:PONG pong:{} with payload size: 0 maxMsgSize: 5242880" remote_addr=pulsar://localhost:6650 local_addr=127.0.0.1:49974
time=2025-12-11T12:09:19.542+08:00 level=DEBUG msg="Received command: type:PONG pong:{} -- payload: " remote_addr=pulsar://localhost:6650 local_addr=127.0.0.1:49974
time=2025-12-11T12:09:19.542+08:00 level=DEBUG msg="Received PONG response" remote_addr=pulsar://localhost:6650 local_addr=127.0.0.1:49974
```

#### System configuration
**Broker version**: apache-pulsar-4.0.8
**Client version**: master https://github.com/apache/pulsar-client-go/commit/bdfa6a08d6b22ef367bda73b133424c45d710e8f

The current strategy when stuck in sending chunk messages is:
```Go
producer.Send() ->
p.internalSendAsync() ->
p.updateChunkInfo(sr): assemble sr.totalChunk num = msg's payload / maxChunkSize ->
p.reserveResources() ->
p.reserveSemaphore(sr): try to acquire p.publishSemaphore num = sr.totalChunk num
```
When we produce a message with `payload > maxChunkSize * MaxPendingMessages`, this single message will occupy the entire partition producer's `p.publishSemaphore` and cannot be released, causing the entire partition producer sending progress block forever.

Since a message cannot be sent successfully if its payload size exceeds `maxChunkSize * MaxPendingMessages`, I believe we should perform payload size validation in `p.validateMsg()` or `p.updateChunkInfo()` before trying acquire `p.publishSemaphore`. If the payload exceeds the limit, we should directly generate an error similar to `ErrMessageTooLarge` and return it to the Send() caller function.