remove dependabot

.github/workflows/dependabot.yml

@@ -1,20 +0,0 @@
-#name: PlatformIO Dependabot
-#
-#on:
-#  workflow_dispatch:
-#  schedule:
-#    # Runs every day at 00:00
-#    - cron: '0 0 * * *'
-#
-#jobs:
-#  dependabot:
-#    runs-on: ubuntu-latest
-#    name: run PlatformIO Dependabot
-#    steps:
-#      - name: Checkout
-#        uses: actions/checkout@v4
-#      - name: run PlatformIO Dependabot
-#        uses: peterus/platformio_dependabot@v1
-#        with:
-#          github_token: ${{ secrets.GITHUB_TOKEN }}
-#          assignee: peterus