ctlv3: use printer for lease command results

[heyitsanthony]

Fixes #7783

[gyuho]

lgtm

[codecov-io]

Codecov Report

❗ No coverage uploaded for pull request base (master@85c9ea9). Click here to learn what that means.
The diff coverage is 25.8%.

@@            Coverage Diff            @@
##             master    #7785   +/-   ##
=========================================
  Coverage          ?   75.76%           
=========================================
  Files             ?      331           
  Lines             ?    26105           
  Branches          ?        0           
=========================================
  Hits              ?    19778           
  Misses            ?     4894           
  Partials          ?     1433

Impacted Files	Coverage Δ
etcdctl/ctlv3/command/printer_fields.go	0% <0%> (ø)
etcdctl/ctlv3/command/printer.go	40.65% <11.11%> (ø)
etcdctl/ctlv3/command/lease_command.go	67.07% <50%> (ø)
etcdctl/ctlv3/command/printer_simple.go	55.38% <66.66%> (ø)

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