chore: use renovate instead

.github/workflows/bun-dependabot.yml

@@ -1,28 +0,0 @@
-name: 'Dependabot: Update bun.lockb'
-
-on:
-  pull_request:
-    paths:
-      - "package.json"
-
-permissions:
-  contents: write
-
-jobs:
-  update-bun-lockb:
-    name: "Update bun.lockb"
-    if: github.actor == 'dependabot[bot]'
-    runs-on: ubuntu-latest
-    steps:
-      - uses: oven-sh/setup-bun@v2
-      - uses: actions/checkout@v4
-        with:
-          fetch-depth: 0
-          ref: ${{ github.event.pull_request.head.ref }}
-      - run: |
-          bun install
-          git add bun.lockb
-          git config --global user.name 'dependabot[bot]'
-          git config --global user.email 'dependabot[bot]@users.noreply.github.com'
-          git commit --amend --no-edit 
-          git push --force