title: Github Dependabot Applies PR's to Wrong Branch
body: <p>In my <code>.github</code> directory in my repo I have the following <code>dependabot.yml</code> file.</p>
  <pre class="lang-yaml prettyprint-override"><code>version: 2
  updates:
    - package-ecosystem: 'github-actions'
      target-branch: 'develop'
      directory: '/'
      schedule:
        interval: 'weekly'
        day: 'saturday'
  
    - package-ecosystem: 'npm'
      target-branch: 'develop'
      directory: '/'
      schedule:
        interval: 'weekly'
        day: 'saturday'
  
    - package-ecosystem: 'composer'
      target-branch: 'develop'
      directory: '/'
      schedule:
        interval: 'weekly'
        day: 'saturday'
  </code></pre>
  <p>Yet today -- Friday July 22 at 5:55 (ish) I get this PR from dependabot:</p>
  <p><a href="https://i.stack.imgur.com/1JrMv.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/1JrMv.png" alt="enter image description here" /></a></p>
  <p>What have a missed here to stop these PRs being sent to my main branch?</p>
  <p>This is very aggravating.</p>