Update agent client to improve CI stability.
Changes:
660e61f Revert: client.go: HybridVSockDialer: Change Read EOT to recv peek
6cfb75d Revert: client.go: HybridVSockDialer: Check return size n of unix.Recvfrom
54eb918 Revert: client.go: HybridVSockDialer: Close dup fd after receive packet
2f49115 agent: Fix mem-hotplug on x86 when ARCH_MEMORY_PROBE is set
Fixes: #2397
Signed-off-by: Jose Carlos Venegas Munoz <jose.carlos.venegas.munoz@intel.com>