Antman2023

On my Raspberry Pi for 32-bit mode, it will raise panic ``` panic: unaligned 64-bit atomic operation goroutine 49 [running]: runtime/internal/atomic.panicUnaligned() /usr/local/go1.22.2.linux-armv6l/src/runtime/internal/atomic/unaligned.go:8 +0x24 runtime/internal/atomic.Xadd64(0x15491bc, 0x1) /usr/local/go1.22.2.linux-armv6l/src/runtime/internal/atomic/atomic_arm.s:265 +0x14 github.com/mingcheng/socks5lb.(*Pool).NextIndex(...) /home/pi/socks5lb/pool.go:72 github.com/mingcheng/socks5lb.(*Pool).Next(0x15491b8)...