guix: use same commit for codesigning time-machine

The time machines should be updated in lockstep.

Author: fanquake

contrib/guix/guix-codesign

@@ -227,7 +227,7 @@ SOURCE_DATE_EPOCH="${SOURCE_DATE_EPOCH:-$(git -c log.showSignature=false log --f
 time-machine() {
     # shellcheck disable=SC2086
     guix time-machine --url=https://git.savannah.gnu.org/git/guix.git \
-                      --commit=aa34d4d28dfe25ba47d5800d05000fb7221788c0 \
+                      --commit=ae03f401381e956c4c41b4cf495cbde964fa43d0 \
                       --cores="$JOBS" \
                       --keep-failed \
                       --fallback \