ci(workflows): added GitHub Actions publish workflow for VS Code extension

Author: chimaek

.github/workflows/publish.yml

@@ -0,0 +1,28 @@
+name: Publish Extension
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 20
+
+      - run: npm ci
+
+      - run: npm run check-types
+
+      - name: Sync version from tag
+        run: npm version ${GITHUB_REF#refs/tags/v} --no-git-tag-version
+
+      - name: Publish to Marketplace
+        run: npx @vscode/vsce publish --no-dependencies
+        env:
+          VSCE_PAT: ${{ secrets.VSCE_PAT }}