fix(sitemap): update tutorial map (#2626)

## 🔗 Relevant links
- [Preview link](https://dev-portal-git-BRANCH_NAME-hashicorp.vercel.app/PATH_TO_VIEW) 🔎

## 🗒️ What
Currently, the sitemap in developer does not reflect every page. Steps to replicate:
- [ ] Navigate to [this tutorial](https://developer.hashicorp.com/terraform/tutorials/cloud/stacks-deploy)
- [ ] Validate that the page exists
- [ ] Navigate to [the sitemap](https://developer.hashicorp.com/server-sitemap.xml)
- [ ] Search for "terraform/tutorials/cloud/stacks-deploy"
- [ ] Validate that no URL exists

This appears to be due to our `generate-tutorial-map` script not having run. After running the script locally, it appears that "src/data/_tutorial-map.generated.json" no shows the expected output.

## 🧪 Testing
- [ ] Navigate to [the sitemap in the preview](https://dev-portal-git-nels-bugbroken-sitemap-hashicorp.vercel.app/server-sitemap.xml)
- [ ] Search for "terraform/tutorials/cloud/stacks-deploy"
- [ ] Validate that a URL exists

Author: nandereck