add mingw to workflow

.github/workflows/release.yml

@@ -19,6 +19,10 @@ jobs:
       - uses: actions/setup-go@v4
         with:
           go-version: stable
+      - name: Set up MinGW
+        uses: egor-tensin/setup-mingw@v2
+        with:
+          platform: x64
       - uses: goreleaser/goreleaser-action@v5
         with:
           distribution: goreleaser

.goreleaser.yaml

@@ -7,6 +7,7 @@ builds:
     env:
       - CGO_ENABLED=1
       - CC=x86_64-w64-mingw32-gcc
+      - CXX=x86_64-w64-mingw32-g++
 release:
   prerelease: auto