ir: Change node validation process order

Validate SN availability before attributes updating. Bootstrap process requires
attributes appending, so a node just can not provide the full attributes list
and, therefore, can not respond with the same NodeInfo that was gotten from the
`locode` validator.

Signed-off-by: Pavel Karpy <carpawell@nspcc.ru>

pkg/innerring/innerring.go

@@ -754,8 +754,8 @@ func New(ctx context.Context, log *zap.Logger, cfg *viper.Viper, errChan chan<-
 		NodeValidator: nodevalidator.New(
 			&netMapCandidateStateValidator,
 			addrvalidator.New(),
-			locodeValidator,
 			availabilityvalidator.New(),
+			locodeValidator,
 		),
 		NodeStateSettings: netSettings,
 	})