v1.11.1 422 Error

[chaseconey]

Describe the bug

It seems that the v1.11.1 version introduced a validation error being returned from the GitHub API at the very end of the process.

The error message:

Checking org/**** for compatible package managers
Traceback (most recent call last):
  File "/action/workspace/evergreen.py", line 427, in <module>
    main()  # pragma: no cover
    ^^^^^^
  File "/action/workspace/evergreen.py", line 162, in main
    pull = commit_changes(
           ^^^^^^^^^^^^^^^
  File "/action/workspace/evergreen.py", line 321, in commit_changes
    pull = repo.create_pull(
           ^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.12/site-packages/github3/decorators.py", line 24, in auth_wrapper
    return func(self, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.12/site-packages/github3/repos/repo.py", line 1185, in create_pull
    return self._create_pull(data)
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.12/site-packages/github3/repos/repo.py", line 117, in _create_pull
    json = self._json(self._post(url, data=data), 201)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.12/site-packages/github3/models.py", line 161, in _json
    raise exceptions.error_for(response)
github3.exceptions.UnprocessableEntity: 422 Validation Failed

To Reproduce

1. Pull latest
2. Run as normal with the config below

Expected behavior

Expect a successful processing of repos created in the last week.

Screenshots

No response

Additional context

Configuration

---
name: Weekly dependabot checks
on:
  workflow_dispatch:
    inputs:
      batch_size:
        description: "Number of repositories to process in a single run"
        required: false
        default: 5
        type: number
  schedule:
    # Runs twice per week, Tuesdays and Saturdays at 2:00 AM UTC
    - cron: "0 2 * * 2,6"

jobs:
  evergreen:
    name: evergreen
    runs-on: ubuntu-latest

    steps:
      - shell: bash
        run: |
          # Get the current date
          current_date=$(date +'%Y-%m-%d')

          # Calculate the previous month
          previous_date=$(date -d "$current_date -7 day" +'%Y-%m-%d')

          echo "$previous_date..$current_date"
          echo "one_week_ago=$previous_date" >> "$GITHUB_ENV"

      - name: Run evergreen action
        uses: github/evergreen@v1
        env:
          GH_APP_ID: "<id>"
          GH_APP_INSTALLATION_ID: "<id>"
          GH_APP_PRIVATE_KEY: ${{ secrets.GH_APP_PRIVATE_KEY }}
          ORGANIZATION: <org>
          GROUP_DEPENDENCIES: true
          PROJECT_ID: 9
          BATCH_SIZE: ${{ inputs.batch_size || 50 }}
          CREATED_AFTER_DATE: ${{ env.one_week_ago }}