Create 2023-11-15-october-2023.md

PR Checklist

[x ] Test Cloud.gov Pages preview for your branch for functionality - make sure all links and buttons work, javascript works as intended, and updates display as expected
- Preview link: https://cg-a72b65a7-73f0-4859-a1d7-dc953cf6ade8.sites.pages.cloud.gov/preview/gsa/search-gov-website/arantxarecio-patch-1/about/updates/newsletters/october-2023.html
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