ci: revert back to using r2 action

.github/workflows/release-tip.yml

@@ -44,13 +44,6 @@ jobs:
           # Important so that build number generation works
           fetch-depth: 0
 
-      - name: Test List
-        env:
-          AWS_ACCESS_KEY_ID: ${{ secrets.CF_R2_TIP_AWS_KEY }}
-          AWS_SECRET_ACCESS_KEY: ${{ secrets.CF_R2_TIP_AWS_KEY }}
-        run: |
-          aws s3api list-objects-v2 --endpoint-url https://${{ secrets.CF_R2_TIP_ACCOUNT_ID }}.r2.cloudflarestorage.com --bucket ghostty-tip
-
       # Install Nix and use that to run our tests so our environment matches exactly.
       - uses: cachix/install-nix-action@v24
         with: