Remove .github directory

.github/dependabot.yml

@@ -1,8 +0,0 @@
-version: 2
-updates:
-  - package-ecosystem: npm
-    directory: '/'
-    schedule:
-      interval: weekly
-      time: '03:00'
-      timezone: Europe/Berlin

.github/workflows/ci.yml

@@ -1,37 +0,0 @@
-name: 'CI'
-
-on:
-  push:
-    branches:
-      - main
-      - v3
-  pull_request:
-    branches:
-      - '**'
-
-jobs:
-  test:
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v3
-
-      - name: Setup Node.js
-        uses: actions/setup-node@v3
-        with:
-          node-version: '16'
-
-      - name: Cache node modules
-        uses: actions/cache@v3
-        env:
-          cache-name: cache-node-modules
-        with:
-          path: ~/.npm
-          key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('**/package-lock.json') }}
-          restore-keys: ${{ runner.os }}-build-${{ env.cache-name }}-
-
-      - run: npm ci --legacy-peer-deps
-      - run: npm test
-      - run: npm run build
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}