Add a test for multiple bibliographies in Typst output.

Author: cderv

tests/docs/smoke-all/2025/10/23/13602/13602.qmd

@@ -0,0 +1,19 @@
+---
+title: Multiple bib in typst
+format: typst
+keep-typ: true
+bibliography: 
+  - references.bib
+  - references-1.bib
+_quarto:
+  tests:
+    typst:
+      ensureTypstFileRegexMatches:
+        - ['\#bibliography\(\("references.bib","references-1.bib"\)\)']
+        - []
+---
+
+A reference from the first file @smith1776inquirynaturecauses
+
+A reference from the second file @ricardo1817principlespoliticaleconomy
+

tests/docs/smoke-all/2025/10/23/13602/references-1.bib

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+@book{ricardo1817principlespoliticaleconomy,
+  title = {On the Principles of Political Economy and Taxation},
+  author = {Ricardo, D.},
+  date = {1817},
+  publisher = {John Murray},
+  url = {https://books.google.com.au/books?id=cUBKAAAAYAAJ},
+  lccn = {18015237}
+}

tests/docs/smoke-all/2025/10/23/13602/references.bib

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+@book{smith1776inquirynaturecauses,
+  title = {An {{Inquiry}} into the {{Nature}} and {{Causes}} of the {{Wealth}} of {{Nations}}},
+  author = {Smith, Adam},
+  year = 1776,
+  edition = {1},
+  publisher = {Wiley},
+  urldate = {2024-11-07},
+  langid = {english},
+
+}