update nthreads info in versioninfo (#52423)

Fixes #52404
@nilshg I opted to make it one line as it fits.
```
julia> versioninfo()
Julia Version 1.11.0-DEV.1011
Commit bb7091c* (2023-12-04 14:58 UTC)
Platform Info:
  OS: macOS (arm64-apple-darwin23.0.0)
  CPU: 10 × Apple M2 Pro
  WORD_SIZE: 64
  LLVM: libLLVM-15.0.7 (ORCJIT, apple-m1)
  Threads: 1 default, 0 interactive, 1 GC (on 6 virtual cores)
Environment:
  JULIA_EDITOR = code
```

Author: IanButterworth

stdlib/InteractiveUtils/src/InteractiveUtils.jl

@@ -160,7 +160,8 @@ function versioninfo(io::IO=stdout; verbose::Bool=false)
     end
     println(io, "  WORD_SIZE: ", Sys.WORD_SIZE)
     println(io, "  LLVM: libLLVM-",Base.libllvm_version," (", Sys.JIT, ", ", Sys.CPU_NAME, ")")
-    println(io, "  Threads: ", Threads.maxthreadid(), " on ", Sys.CPU_THREADS, " virtual cores")
+    println(io, """Threads: $(Threads.nthreads(:default)) default, $(Threads.nthreads(:interactive)) interactive, \
+      $(Threads.ngcthreads()) GC (on $(Sys.CPU_THREADS) virtual cores)""")
 
     function is_nonverbose_env(k::String)
         return occursin(r"^JULIA_|^DYLD_|^LD_", k)