Mark outdated workflow nodes on canvas and send a summary with Gmail (add-on)

This is an add-on for the template Check if workflows contain build-in nodes that are not of the latest version Purpose This workflow highlights outdated nodes within all workflows of a single n8n instance and places an updated preconfigured node right next to it, so it can be swapped easily. How it works The parent workflow checks the entire n8n instance for outdated nodes within all workflows and passes a list of those alongside some metadata to this workflow This workflow then processes that data and updates the affected workflows Outdated nodes are renamed by prepending an emoji (default: ⚠️) - this is also used for future checks to prevent from double-processing The latest version of ea

Help me set up the n8n workflow "Mark outdated workflow nodes on canvas and send a summary with Gmail (add-on)" (https://n8n.io/workflows/2477). It uses: Gmail, Code. Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.