chore(deps): update themes/hugo-relearn digest to 9648b28 in .gitmodules

renovate[bot] · web-flow · commit 563f877c7506 · 2025-12-28T13:43:47.000Z
diff --git a/themes/hugo-relearn b/themes/hugo-relearn
@@ -1 +1 @@
-Subproject commit ef6b09f665f4b3105fbea8db9f225cec158f8e4d
+Subproject commit 9648b2801201e5321dcc076c402f9098cc48e7eb
