docs: stop livenessProbe
docs: stop livenessProbe

Stop livenessProbe to prevent pod deletion while operation.

Signed-off-by: Toshikuni Fukaya <963c2c89ffecd2348135f2dfcc3d72f63e041a0a@cybozu.co.jp>

rook/nfs,rook/rook,rook/nfs,rook/rook,rook/rook,rook/nfs,rook/rook,rook/rook