Migrate from Gitea Actions to GitHub Actions

.github/dependabot.yml

@@ -0,0 +1,14 @@
+version: 2
+updates:
+  - package-ecosystem: "npm"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+  - package-ecosystem: "devcontainers"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"

.github/renovate.json

@@ -0,0 +1,16 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": ["config:recommended", ":disableDependencyDashboard"],
+  "assignees": ["valentineus"],
+  "labels": ["dependencies", "automated"],
+  "packageRules": [
+    {
+      "description": "Group patch & minor updates together",
+      "groupName": "all digest updates",
+      "groupSlug": "all-digest",
+      "matchUpdateTypes": ["minor", "patch", "pin", "digest"],
+      "matchPackageNames": ["*"],
+      "automerge": true
+    }
+  ]
+}

.github/workflows/ci.yml

@@ -0,0 +1,26 @@
+name: CI
+
+on:
+  push:
+    branches: [master]
+  pull_request:
+    branches: [master]
+
+permissions:
+  contents: read
+
+jobs:
+  test:
+    name: Test
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 22
+      - name: Install dependencies
+        run: npm ci
+      - name: Run checks
+        run: npm run check