code-signing: install wine32:i386 for 32-bit ISCC under Wine

Author: rafael2k

.github/workflows/signpath-test.yml

@@ -135,8 +135,11 @@ jobs:
           INNO_SHA256: 4c9c92249663f201a33bf194c0cd37e01c60540e299c771f3626411ef463c884
         run: |
           set -eu
+          # ISCC.exe is 32-bit; wine on the runner ships without i386, so
+          # enable multiarch and pull wine32 to get syswow64 working.
+          sudo dpkg --add-architecture i386
           sudo apt-get update
-          sudo apt-get install -y --no-install-recommends wine ca-certificates curl zip
+          sudo apt-get install -y --no-install-recommends wine wine32:i386 ca-certificates curl zip
           curl -fsSLo /tmp/inno.tar.gz "$INNO_URL"
           echo "${INNO_SHA256}  /tmp/inno.tar.gz" | sha256sum -c -
           wineboot -i