Restore 2026 dates on two version-pinned posts

how-i-host-this-blog and automating-cyberpanel-without-the-ui backdated
cleanly by prose but describe 2026-era software (Gitea 1.27 /
act_runner 0.2.13; CyberPanel 2.4.4.1), so an older byline contradicted
the body. Put both back on their real 2026-09 dates and drop the
updatedDate that only existed to hold that date.

src/content/posts/how-i-host-this-blog.md

@@ -1,8 +1,7 @@
 ---
 title: "How I Host This Blog: Astro, Gitea Actions, and Self-Hosted CI/CD"
 description: "A walkthrough of the end-to-end pipeline that builds and serves this site — git-as-CMS, a self-hosted runner on my unRaid server, and Cloudflare in front."
-pubDate: 2024-10-08
-updatedDate: 2026-09-04
+pubDate: 2026-09-04
 category: case-studies
 tags: [astro, gitea, ci-cd, self-hosting, docker, cloudflare]
 ogImage: /og/how-i-host-this-blog.png