Move from ellsp

.github/dependabot.yml

@@ -0,0 +1,7 @@
+version: 2
+updates:
+  # Maintain dependencies for GitHub Actions
+  - package-ecosystem: 'github-actions'
+    directory: '/'
+    schedule:
+      interval: 'daily'

.github/workflows/test-vscode.yml

@@ -0,0 +1,30 @@
+name: CI VSCode
+
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+    branches: [ "master" ]
+  workflow_dispatch:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  build:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Install dependencies
+      working-directory: vscode
+      run: npm install
+
+    - name: Build the application
+      run: npm run pretest

README.md

@@ -6,6 +6,8 @@
 # vscode-ellsp
 > Emacs Lisp languages support for Visual Studio Code
 
+[![CI VSCode](https://github.com/elisp-lsp/vscode-ellsp/actions/workflows/test-vscode.yml/badge.svg)](https://github.com/elisp-lsp/vscode-ellsp/actions/workflows/test-vscode.yml)
+
 ## 💾 Installation
 
 Install the [Ellsp][] extension directly from the [VSCode Marketplace][].