Add test for suppress-bibliography with Typst native citations

Verifies that suppress-bibliography: true works with Typst's native
citation system (not just citeproc). The test checks that the generated
.typ file contains the #show bibliography: none rule, and that the
PDF output includes citations but no bibliography section.

Refs #14327

Author: gordonwoodhull

tests/docs/smoke-all/typst/suppress-bibliography.qmd

@@ -0,0 +1,24 @@
+---
+title: "Suppress Bibliography with Typst Native Citations"
+bibliography: refs.bib
+suppress-bibliography: true
+format:
+  typst:
+    keep-typ: true
+_quarto:
+  tests:
+    typst:
+      ensureTypstFileRegexMatches:
+        - ['#show bibliography: none', '#bibliography\(']
+        - []
+      ensurePdfRegexMatches:
+        - ['Cronbach']
+        - ['References\s*$', 'Bibliography\s*$']
+      noErrors: default
+---
+
+Testing that `suppress-bibliography: true` works with Typst native citations (#14327).
+
+@Cronbach_1951 is a classic reference.
+
+The bibliography should not appear at the end of this document.