Dependabot Automerge github action workflow

dependabotAutomerge.yml

name: Dependbot Automerge
on:
  pull_request:
    types: ['opened']

jobs:
  Automerge:
    # provided by https://github.com/dependabot/dependabot-core/issues/2268#issuecomment-654608325
    runs-on: ubuntu-latest
    if: |
      startsWith(github.actor, 'dependabot') &&
      github.event_name == 'pull_request' &&
      (startsWith(github.event.pull_request.title, 'build(deps):') ||
      startsWith(github.event.pull_request.title, 'build(devDep):'))
    steps:
      - name: '@dependabot squash and merge'
        uses: actions/github-script@v2
        with:
          github-token: ${{secrets.GH_TOKEN_DEPENDABOT}}
          script: |
            await github.issues.createComment({
              owner: context.repo.owner,
              repo: context.payload.repository.name,
              issue_number: context.payload.pull_request.number,
              body: '@dependabot squash and merge'
            })

Note: Personal Access token needs to be created for this to work.
Store the personal access token as a repo secret with the name GH_TOKEN_DEPENDABOT

Public repo

Private repo

Credit: @UziTech

Used along with https://gist.github.com/Clumsy-Coder/81067db2f19db0044c2818d19f46ed74