mockcat test failure

[mihaimaruseac]

           Failures:
           
             test/Test/MockCat/ExampleSpec.hs:43:1: 
             1) echo4
                  uncaught exception: ErrorCall
                  It has never been applied function `_writeTTY`
                  CallStack (from HasCallStack):
                    error, called at src/Test/MockCat/Mock.hs:860:35 in mockcat-0.5.1.0-2GB8slwICfoB3jqXeVmf1f:Test.MockCat.Mock
                    shouldApplyToAnything, called at test/Test/MockCat/ExampleSpec.hs:43:1 in main:Test.MockCat.ExampleSpec
           
             To rerun use: --match "/echo4/" --seed 1907119792
           
           Randomized with seed 1907119792

There is a release of mockcat today, so probably that is the culprit. For now, I will disable testing mockcat, but, @pujoheadsoft, please fix the test so future regressions from when dependencies update can be caught.