[FAB-12949] Fix etcdraft reconfiguration UT
[FAB-12949] Fix etcdraft reconfiguration UT

Change-Id: I64c232fe6433b9f6ca0dadbabfcc771f3f2c623f
Signed-off-by: Jay Guo <91d7eeb83d08be0dc56ea674009c4b53383e15b3@gmail.com>

xixuejia/fabric,xixuejia/fabric,xixuejia/fabric