Try x64 mingw

Author: fschutt

.github/workflows/ci.yaml

@@ -34,7 +34,7 @@ jobs:
         if: ${{ matrix.target-abi == 'gnu' }}
         uses: egor-tensin/setup-mingw@v2
         with:
-          platform: "${{ contains(matrix.target-sys, 'x86_64') && 'x64' || 'i686' }}"
+          platform: "x64"
           version: 13.2.0
         continue-on-error: true
       - name: Install toolchain for ${{ matrix.target-sys }}-${{ matrix.target-abi }}