test: use filters instead of shortcodes

Author: mcanouil

tests/docs/smoke-all/2025/12/05/typst-path-api.lua

@@ -1,7 +1,5 @@
-function typst_path()
-  return quarto.paths.typst()
+function Pandoc(doc)
+  if quarto.paths.typst() == nil then
+    crash()
+  end
 end
-
-return {
-  ["typst"] = typst_path
-}

tests/docs/smoke-all/2025/12/05/typst-path-api.qmd

@@ -1,12 +1,7 @@
 ---
 format: html
-shortcodes:
+filters:
   - typst-path-api.lua
-_quarto:
-  tests:
-    html:
-      ensureFileRegexMatches:
-        - ["<p>The Typst path is <code>.+typst</code>.</p>"]
 ---
 
-The Typst path is `{{< typst >}}`.
+The Typst path is accessible.