chore: removed platformio_dependabot

.github/workflows/pio-dependabot.yaml

@@ -1,22 +0,0 @@
-name: PlatformIO Dependabot
-on:
-  workflow_dispatch: # option to manually trigger the workflow
-  schedule:
-    # Runs every day at 00:00
-    - cron: "0 0 * * *"
-
-permissions:
-  contents: write
-  pull-requests: write
-
-jobs:
-  dependabot:
-    runs-on: ubuntu-latest
-    name: run PlatformIO Dependabot
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v5
-      - name: run PlatformIO Dependabot
-        uses: peterus/platformio_dependabot@v1.2.0
-        with:
-          github_token: ${{ secrets.GITHUB_TOKEN }}