Add release workflow

For the next tagged release the build artifacts should be added to the
release in GitHub.

Author: ServiusHack

.github/workflows/release.yml

@@ -0,0 +1,32 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - "*.*.*"
+
+env:
+  BUILD_TYPE: RelWithDebInfo
+
+jobs:
+  build:
+    runs-on: windows-latest
+
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v4
+      with:
+        submodules: 'true'
+
+    - name: Configure CMake
+      run: cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}}
+
+    - name: Build
+      run: cmake --build ${{github.workspace}}/build --config ${{env.BUILD_TYPE}}
+
+    - name: Release
+      uses: softprops/action-gh-release@v2
+      with:
+        files: |
+          ${{github.workspace}}/build/MStarPlayer_artefacts/${{env.BUILD_TYPE}}/MStarPlayer.exe
+          ${{github.workspace}}/build/MStarPlayer_artefacts/${{env.BUILD_TYPE}}/MStarPlayer.pdb