ci: Properly bump to focal for win cross build

ci/test/00_setup_env_win64.sh

@@ -9,7 +9,8 @@ export LC_ALL=C.UTF-8
 export CONTAINER_NAME=ci_win64
 export DOCKER_NAME_TAG=ubuntu:20.04  # Check that Focal can cross-compile to win64 (Focal is used in the gitian build as well)
 export HOST=x86_64-w64-mingw32
-export PACKAGES="python3 nsis g++-mingw-w64-x86-64 wine-binfmt wine64 file"
+export DPKG_ADD_ARCH="i386"
+export PACKAGES="python3 nsis g++-mingw-w64-x86-64 wine-binfmt wine64 wine32 file"
 export RUN_FUNCTIONAL_TESTS=false
 export GOAL="deploy"
 export BITCOIN_CONFIG="--enable-reduce-exports --disable-fuzz-binary --disable-gui-tests --without-boost-process"

ci/test/wrap-wine.sh

@@ -6,6 +6,8 @@
 
 export LC_ALL=C.UTF-8
 
+wine --version
+
 for b_name in {"${BASE_OUTDIR}/bin"/*,src/secp256k1/*tests,src/univalue/{no_nul,test_json,unitester,object}}.exe; do
     # shellcheck disable=SC2044
     for b in $(find "${BASE_ROOT_DIR}" -executable -type f -name "$(basename $b_name)"); do
@@ -13,7 +15,7 @@ for b_name in {"${BASE_OUTDIR}/bin"/*,src/secp256k1/*tests,src/univalue/{no_nul,
         echo "Wrap $b ..."
         mv "$b" "${b}_orig"
         echo '#!/usr/bin/env bash' > "$b"
-        echo "wine64 \"${b}_orig\" \"\$@\"" >> "$b"
+        echo "wine \"${b}_orig\" \"\$@\"" >> "$b"
         chmod +x "$b"
       fi
     done