Remove Dependabot PR approval step

Removed approval step for Dependabot PRs in CI workflow.

Author: bourgeoa

.github/workflows/ci.yml

@@ -57,11 +57,6 @@ jobs:
         uses: dependabot/fetch-metadata@v2
         with:
           github-token: "${{ secrets.GITHUB_TOKEN }}"
-      - name: Approve Dependabot PR
-        run: gh pr review --approve "$PR_URL"
-        env:
-          PR_URL: ${{ github.event.pull_request.html_url }}
-          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       - name: Enable auto-merge for Dependabot PRs
         if: steps.metadata.outputs.update-type == 'version-update:semver-patch' || steps.metadata.outputs.update-type == 'version-update:semver-minor'
         run: gh pr merge --auto --merge "$PR_URL" # Use Github CLI to merge automatically the PR