Fix RTD builds

Signed-off-by: Ayan Sinha Mahapatra <[email protected]>

Author: AyanSinhaMahapatra

setup.cfg

@@ -67,7 +67,7 @@ testing =
     isort
 
 docs =
-    Sphinx == 6.2.1
+    Sphinx == 5.1.0
     sphinx-rtd-theme >= 0.5.0
     sphinxcontrib-apidoc >= 0.3.0
     doc8 >= 0.8.1