Add symlink to the `ct_run` of the last commot test run
Add symlink to the `ct_run` of the last commot test run

Implements #1734. In case of not being able to create the
symlink rebar3 warns through `?DEBUG`.

vladdu/rebar3,rebar/rebar3,lrascao/rebar3,erlang/rebar3,saleyn/rebar3,rebar/rebar3,tsloughter/rebar3