chore(deps): update dependency sphinx to v9

renovate[bot] · web-flow · commit 03c0acc35c19 · 2026-01-03T18:06:49.000Z
diff --git a/docs/requirements.txt b/docs/requirements.txt
@@ -1,4 +1,4 @@
-Sphinx==5.3.0
+Sphinx==9.1.0
 breathe==4.35.0
 sphinx-ncs-theme==0.7.4
 sphinx-tabs>=3.4
