Merge bitcoin/bitcoin#24484: guix: use same commit for codesigning time-machine

29862bd guix: use same commit for codesigning time-machine (fanquake)

Pull request description:

  The time machines should be updated in lockstep.

ACKs for top commit:
  gruve-p:
    ACK bitcoin/bitcoin@29862bd
  achow101:
    ACK 29862bd
  hebasto:
    ACK 29862bd, I have reviewed the code and it looks OK, I agree it can be merged.

Tree-SHA512: 1cd6e449bba62041f6fde1463c490488b8d60dd86714818f27e92725008af850d3ce3fbde0c302406044cc73094cccc9e9bf4179256e9783627b18c5e66f8b49

Author: achow101

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 \