doc: update sphinx version from 4.5 to 6 higher version

fanghuaqi · fanghuaqi · commit 2f99211e328d · 2025-05-14T12:06:53.000+08:00
Signed-off-by: Huaqi Fang &lt;578567190@qq.com&gt;
diff --git a/NMSIS/doc/requirements.txt b/NMSIS/doc/requirements.txt
@@ -1,6 +1,5 @@
-docutils<0.18
-breathe~=4.33.1
-commonmark~=0.9.1
-recommonmark~=0.7.1
-Sphinx~=4.5.0
-sphinx-rtd-theme~=1.0.0
+breathe>=4.33.1
+commonmark>=0.9.1
+recommonmark>=0.7.1
+Sphinx>=6,<9
+sphinx-rtd-theme<=2.1.0rc2
