add interactive pool size to Base.runtests report (#57215)

Author: IanButterworth

test/runtests.jl

@@ -120,7 +120,8 @@ cd(@__DIR__) do
         Running parallel tests with:
           getpid() = $(getpid())
           nworkers() = $(nworkers())
-          nthreads() = $(Threads.threadpoolsize())
+          nthreads(:interactive) = $(Threads.threadpoolsize(:interactive))
+          nthreads(:default) = $(Threads.threadpoolsize(:default))
           Sys.CPU_THREADS = $(Sys.CPU_THREADS)
           Sys.total_memory() = $(Base.format_bytes(Sys.total_memory()))
           Sys.free_memory() = $(Base.format_bytes(Sys.free_memory()))