Remove workflow to fix pnpm dependencies

GitHub supports pnpm for dependabot natively now:
https://github.blog/changelog/2023-06-12-dependabot-version-updates-now-supports-pnpm/

.github/workflows/npm-deps.yml

@@ -1,50 +0,0 @@
-name: Fix dependabot PRs
-
-on:
-  pull_request:
-    branches:
-      - "dependabot/**"
-
-permissions:
-  contents: write
-  pull-requests: write
-
-jobs:
-  pnpm-lock:
-    if: github.actor == 'dependabot[bot]'
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          ref: ${{ github.head_ref }}
-
-      - uses: pnpm/action-setup@v2
-        with:
-          version: latest
-
-      - uses: actions/setup-node@v3
-        with:
-          node-version-file: ".nvmrc"
-          cache: "pnpm"
-
-      - name: Configure git
-        run: |
-          git config --global user.name github-actions[bot]
-          git config --global user.email 41898282+github-actions[bot]@users.noreply.github.com
-
-      - name: Install dependencies (no-frozen-lockfile)
-        run: pnpm install --no-frozen-lockfile
-
-      - name: Check if files have been modified
-        id: mod_check
-        run: |
-          [[ $(git status -s | wc -l) -le 1 ]] \
-          && echo "is-dirty=false" >> "$GITHUB_OUTPUT" \
-          || echo "is-dirty=true" >> "$GITHUB_OUTPUT"
-
-      - name: Commit and push changes
-        if: steps.mod_check.outputs.is-dirty == 'true'
-        run: |
-          git add .
-          git commit -m "Update pnpm-lock.yaml"
-          git push