index.html is not being created

Hi,

I am trying to use this github action for keeping track on the performance of a `customSmallerIsBetter` tool.
After the action is executed, I don't see `index.html` is being generated.

I would appreciate some help. Thanks!

```
name: Benchmarks

on:
workflow_dispatch:
push:
branches: [master]

permissions:
# deployments permission to deploy GitHub pages website
deployments: write
# contents permission to update benchmark contents in gh-pages branch
contents: write

jobs:
deploy-benchmark-teardown:
runs-on: ubuntu-latest

steps:
- name: Checkout repository
uses: actions/checkout@v3

- name: Set a unique run identifier
run: echo "UNIQE_ID=${{ github.run_number }}-${{ github.run_attempt }}" >> $GITHUB_ENV

- name: Run load test
run: |
cat >/tmp/results.json <