actions/checkout@v3 use node version that is going to be deprecated

[galbaneim-orca]

# Checkout the branch you want Infracost to compare costs against, most commonly the target branch.
- name: Checkout base branch
  uses: actions/checkout@v3
  with:
    ref: '${{ github.event.pull_request.base.ref }}'

The following actions use a deprecated Node.js version and will be forced to run on node20: actions/checkout@v3

can you update the it to actions/checkout@v4