update Sphinx

Author: jmckenna

requirements.txt

@@ -1,7 +1,6 @@
 alabaster==1.0.0
 docutils==0.21.2
-sphinx==8.0.2
+sphinx==8.1.0
 sphinx-copybutton==0.5.2
 sphinxcontrib-jquery==4.1
 --extra-index-url https://test.pypi.org/simple/
-mapscript==8.2.0