Merge pull request #386 from opensafely-core/dependabot/github_actions/slackapi/slack-github-action-3.0.1

build(deps): Bump slackapi/slack-github-action from 2.1.1 to 3.0.1

Author: rebkwok

.github/workflows/update-dependencies.yml

@@ -31,7 +31,7 @@ jobs:
 
     - name: Notify slack of PR
       if: ${{ steps.update.outputs.pull-request-operation != 'none' }}
-      uses: slackapi/slack-github-action@91efab103c0de0a537f72a35f6b8cda0ee76bf0a  # v2.1.1
+      uses: slackapi/slack-github-action@af78098f536edbc4de71162a307590698245be95  # v3.0.1
       with:
         method: chat.postMessage
         token: ${{ secrets.BENNETTBOT_SLACK_BOT_TOKEN }}