Save stdout/err of tests with colors

Author: giordano

src/ParallelTestRunner.jl

@@ -258,7 +258,7 @@ function runtest(f, name, init_code, color)
                 take!(pipe_initialized)
                 read(pipe, String)
             end
-            stats = redirect_stdio(stdout=pipe, stderr=pipe) do
+            stats = redirect_stdio(; stdout=IOContext(pipe, :color=>$(color)), stderr=IOContext(pipe, :color=>$(color))) do
                 put!(pipe_initialized, nothing)
 
                 # @testset CustomTestRecord switches the all lower-level testset to our custom testset,