PR is not created. Only branch is

[yalattas]

Describe the bug

documentation stating that PR should be created in case action triggered via different mechanism than PR. Mine is working on push on default branch.
I noticed that PR wasn't created. Yet, another branch named changelog-ci-main-1718765670 so I had to write extra step to open the PR and merge it. Yet, outputs doesn't have branch name. only change log content.

Therefore, I had to write an extra git command to get the branch based on pattern given that number of the branch is random

Your Environment

ubuntu-latest

Workflow Run URL (if Public Repository):
(Example: https://github.com/saadmk11/changelog-ci/actions/runs/1350256604)
Contents of Your Changelog-CI Workflow File (.yaml File):

on:
  push:
    branches:
      - hotfix/changelog

jobs:
  release:
    runs-on: ubuntu-latest
    permissions:
      contents: write
      discussions: write

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Get the latest tag
        id: get_tag
        run: |
          git fetch --tags
          LATEST_TAG=$(git describe --tags `git rev-list --tags --max-count=1`)
          echo "latest_tag=$LATEST_TAG" >> $GITHUB_OUTPUT

      - name: Run Changelog CI
        uses: saadmk11/changelog-ci@v1.1.2
        id: changelog_ci
        continue-on-error: true
        with:
          changelog_filename: CHANGELOG.md
          committer_username: ${{ vars.CI_NAME }}
          committer_email: ${{ vars.CI_EMAIL }}
          github_token: ${{ secrets.GITHUB_TOKEN }}
          release_version: ${{ steps.get_tag.outputs.latest_tag }}

      - name: Get the latest branch matching the pattern
        id: get_branch
        run: |
          git fetch --all
          LATEST_BRANCH=$(git for-each-ref --sort=-committerdate --format='%(refname:short)' refs/heads/changelog-ci-* | head -n 1)
          echo "latest_branch=$LATEST_BRANCH" >> $GITHUB_OUTPUT

      - name: Create Pull Request
        uses: peter-evans/create-pull-request@v6
        id: pull_request
        continue-on-error: true
        with:
          title: "[CI]: update changelog for version ${{ steps.get_tag.outputs.latest_tag }}"
          commit-message: "[skip ci] update changelog for version ${{ steps.get_tag.outputs.latest_tag }}"
          committer: ${{ vars.CI_EMAIL }}
          author: ${{ vars.CI_NAME }}
          branch: ${{ steps.get_branch.outputs.latest_branch }}
          base: ${{ github.event.repository.default_branch }}

      - name: Merge Pull Request
        uses: juliangruber/merge-pull-request-action@v1
        continue-on-error: true
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          number: ${{ steps.pull_request.outputs.pull-request-number }}
          method: squash

      - name: Release
        uses: softprops/action-gh-release@v2
        with:
          body_path: ${{ steps.changelog_ci.outputs.changelog }}
          tag_name: ${{ steps.get_tag.outputs.latest_tag }}
          generate_release_notes: true

Contents of Changelog-CI Configuration File (If Applicable):

Expected behavior

To open a PR with a title and a body. Or provide newly created branch in output to carry the execution further

Actual behavior

Branch was created and not PR

Additional context

Add any other context about the problem here.