DeprecationWarning: Buffer() is deprecated due to security and usability issues.

I'm having this issue:

with this basic workflow:

```
on:
pull_request:
types: [opened, edited]

name: conventional-release-labels

jobs:
label:
runs-on: ubuntu-latest
steps:
- uses: bcoe/conventional-release-labels@v1
```

Start by running the supplied pull_request workflow with bcoe/conventional-release-labels@v1 and confirm the deprecation warning. Then inspect the action's JavaScript entry point and dependencies for the warning source; done means the workflow completes without this Buffer() warning.

Written by the indexing model from the issue text.