add github actions to generate artifacts

.github/actions/setup-ninja/action.yml

@@ -0,0 +1,9 @@
+name: 'setup-ninja'
+description: 'Setup Ninja'
+runs:
+  using: "composite"
+  steps:
+   - name: Setup Ninja
+     uses: seanmiddleditch/gha-setup-ninja@master
+   - name: Setup MSVC with Ninja
+     uses: ilammy/msvc-dev-cmd@v1

.github/dependabot.yml

@@ -0,0 +1,6 @@
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"

.github/workflows/generate_artifacts.yml

@@ -0,0 +1,27 @@
+name: Generate windows artifact
+on:
+  push:
+
+jobs:
+  build:
+    name: Build windows artifact
+    runs-on: windows-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - name: Setup Ninja
+        uses: ./.github/actions/setup-ninja
+      - name: Fetch dependencies
+        run: python3 ./utils/fetch_sources.py --shallow
+      - name: Make archive
+        shell: bash
+        run: |
+          set -x
+          bash utils/make_artifact_windows_x64.sh
+          echo "installdir=$(realpath build-artifact*/clspv-*)" >> $GITHUB_ENV
+      - uses: actions/upload-artifact@v4
+        with:
+          name: windows-artifact
+          path: '${{ env.installdir }}'
+