chore(deps): update themes/reveal-hugo digest to 81a5f74 (#207)

renovate[bot] · web-flow · commit 3d699d65261b · 2025-06-24T02:30:10.000Z
Co-authored-by: renovate[bot] &lt;29139614+renovate[bot]@users.noreply.github.com&gt;
diff --git a/themes/reveal-hugo b/themes/reveal-hugo
@@ -1 +1 @@
-Subproject commit 4d5e3de4ecba49466fba7dcde99ab0ad939bd701
+Subproject commit 81a5f747b97a6ebebc1622f130f305b50bb58ba1
