ci: add auto-build-plugin workflow

.github/workflows/build_plugin.yml

@@ -0,0 +1,33 @@
+name: 'Build Plugin'
+on:
+  push:
+
+jobs:
+  build-and-publish:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Setup node
+        uses: actions/setup-node@v2
+        with:
+          node-version: 18
+
+      - name: Install dependencies
+        run: |
+          export ELECTRON_SKIP_BINARY_DOWNLOAD=1
+          npm install -g yarn && yarn install
+
+      - name: Build plugin
+        run: yarn plugin-build
+
+      - name: Pack plugin
+        run: |
+          sudo apt install zip -y
+          zip -r LiteLoaderQQNT-NekoImage.zip LiteLoaderQQNT-NekoImage
+
+      - uses: actions/upload-artifact@v4
+        with:
+          name: LiteLoaderQQNT-NekoImage.zip
+          path: LiteLoaderQQNT-NekoImage.zip