ci: add GitHub Actions release workflow

.github/workflows/release.yml

@@ -0,0 +1,66 @@
+name: "release"
+on:
+  push:
+  #  branches:
+    tags:
+      - '*'
+  #pull_request:
+  #  branches:
+  #    - '*'
+
+jobs:
+  linux:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          submodules: true
+
+      - name: Configure CMake
+        run: cmake -G "Ninja" -B build
+
+      - name: Build
+        run: cmake --build build
+
+      - uses: actions/upload-artifact@v3
+        with:
+          name: linux-release
+          path: build/modlimitfix
+
+  windows:
+    runs-on: windows-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          submodules: true
+
+      - name: Configure CMake
+        #run: cmake -G "Visual Studio 17 2022" -B build
+        run: cmake -G "Ninja" -B build
+
+      - name: Build
+        run: cmake --build build
+
+      - uses: actions/upload-artifact@v3
+        with:
+          name: windows-release
+          path: build/modlimitfix.exe
+
+  release:
+    runs-on: ubuntu-latest
+    needs: [linux, windows]
+
+    steps:
+      - name: Download artifacts
+        uses: actions/download-artifact@v2
+      - name: Release
+        uses: ncipollo/release-action@v1
+        with:
+          draft: true
+          generateReleaseNotes: true
+          artifacts: "modlimitfix,modlimitfix.exe"
+          token: ${{ secrets.GITHUB_TOKEN }}