feat(pool): Improve success rate of new connections (#3518)

* async create conn

* update default values and testcase

* fix comments

* fix data race

* remove context.WithoutCancel, which is a function introduced in Go 1.21

* fix TestDialerRetryConfiguration/DefaultDialerRetries, because tryDial are likely done in async flow

* change to share failed to delivery connection to other waiting

* remove chinese comment

* fix: optimize WantConnQueue benchmarks to prevent memory exhaustion

- Fix BenchmarkWantConnQueue_Dequeue timeout issue by limiting pre-population
- Use object pooling in BenchmarkWantConnQueue_Enqueue to reduce allocations
- Optimize BenchmarkWantConnQueue_EnqueueDequeue with reusable wantConn pool
- Prevent GitHub Actions benchmark failures due to excessive memory usage

Before: BenchmarkWantConnQueue_Dequeue ran for 11+ minutes and was killed
After: All benchmarks complete in ~8 seconds with consistent performance

* format

* fix turn leaks

---------

Co-authored-by: Nedyalko Dyakov <1547186+ndyakov@users.noreply.github.com>
Co-authored-by: Hristo Temelski <hristo.temelski@redis.com>

internal/pool/hooks_test.go

@@ -191,8 +191,9 @@ func TestPoolWithHooks(t *testing.T) {
 		Dialer: func(ctx context.Context) (net.Conn, error) {
 			return &net.TCPConn{}, nil // Mock connection
 		},
-		PoolSize:    1,
-		DialTimeout: time.Second,
+		PoolSize:           1,
+		MaxConcurrentDials: 1,
+		DialTimeout:        time.Second,
 	}
 
 	pool := NewConnPool(opt)