IR: morph.consensus.peers.min config defaults incorrectly

[cthulhu-rider]

seems like declared default behavior of

neofs-node/config/example/ir.yaml

Line 68 in c408b57

min: 1 # Optional minimum number of peers a node needs for normal operation. Defaults to consensus minimum

config doesn't work

when config key min is ommited, final used value must be calculated from committee array size. E.g. for 4 committee members min must default to 2

[cthulhu-rider]

fixed by #2856