update CI

.github/workflows/dependabot.yml

@@ -1,19 +0,0 @@
-name: PlatformIO Dependabot
-
-on:
-  workflow_dispatch:
-  schedule:
-    # Runs every day at 01:00
-    - cron: "0 1 * * *"
-
-jobs:
-  dependabot:
-    runs-on: ubuntu-latest
-    name: PlatformIO Dependabot
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-      - name: run PlatformIO Dependabot
-        uses: peterus/platformio_dependabot@v1
-        with:
-          github_token: ${{ secrets.GITHUB_TOKEN }}