add regression test for #5625 because we're reverting an unneeded code path

Author: cscheid

tests/docs/smoke-all/2024/10/28/issue-5625/_quarto.yml

@@ -0,0 +1,22 @@
+project:
+  type: website
+
+website:
+  title: "myblog"
+  image: "/posts/post-with-code/image.jpg"
+  open-graph: true
+  page-footer:
+    center: |
+      Footer image:
+      [![](/profile.jpg)](https://quarto.org/)
+  navbar:
+    right:
+      - icon: github
+        href: https://github.com/
+      - icon: twitter
+        href: https://twitter.com
+
+format:
+  html:
+    theme: cosmo
+    css: styles.css

tests/docs/smoke-all/2024/10/28/issue-5625/index.qmd

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+---
+title: "issue-5625"
+_quarto:
+  render-project: true
+  tests:
+    html:
+      ensureFileRegexMatches:
+        - 
+          - '<meta property="og:image" content="/posts/post-with-code/image.jpg">'
+        - []
+---
+
+This is a Quarto website.
+
+To learn more about Quarto websites visit <https://quarto.org/docs/websites>.

tests/docs/smoke-all/2024/10/28/issue-5625/styles.css

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+/* css styles */