Updated four packages in GNU Guix:
f87e31d8f0c gnu: utest-h: Update to 0.0.0-1.b9c006f.
91c7a43604e gnu: utf8-h: Update to 0.0.0-1.a6cd7d4.
5ae339c8b8d gnu: stress-ng: Update to 0.20.01.
b73788685f3 gnu: dool: Update to 1.3.8.

#guix #guix_patches