✨ Add pipeline for publishing to marketplace

Ref #2

.github/workflows/publish.yml

@@ -0,0 +1,22 @@
+name: Deploy extension
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  publish-marketplace:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 20
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Deploy to marketplace
+        run: npm run vscode:publish
+        env:
+          VSCE_PAT: ${{ secrets.VSCODE_SECRET }}

package.json

@@ -22,6 +22,7 @@
   "contributes": {},
   "scripts": {
     "vscode:prepublish": "npm run compile",
+    "vscode:publish": "vsce publish",
     "compile": "tsc -p ./",
     "watch": "tsc -watch -p ./",
     "pretest": "npm run compile && npm run lint",