update_api.yml in slack-ruby-client-2.4.0

- old
+ new

@@ -40,10 +40,10 @@
           app_id: ${{ secrets.CI_APP_ID }}
           private_key: ${{ secrets.CI_APP_PRIVATE_KEY }}
           installation_id: 36985419
       - name: Create pull request
         id: cpr
-        uses: peter-evans/create-pull-request@v5
+        uses: peter-evans/create-pull-request@v6
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
           commit-message: Update API from slack-api-ref@${{ steps.api-ref.outputs.api-ref }} (${{ steps.date.outputs.date }})
           title: Update API from slack-api-ref@${{ steps.api-ref.outputs.api-ref }}
           body: |