ghc 9.4.4 failed to build with sphinx-doc 6.0.0
## Summary
Running into build issue when building ghc 9.4.4 against sphinx-doc 6.0.0
The error is as below
```
Command line: /opt/homebrew/opt/sphinx-doc/bin/sphinx-build -b man -d /private/tmp/extra-dir-55768274273/.doctrees-man -n -w /private/tmp/extra-dir-55768274273/.log docs/users_guide /private/tmp/extra-dir-55768274273
===> Command failed with error code: 2
Exception occurred:
File "/opt/homebrew/Cellar/sphinx-doc/6.0.0/libexec/lib/python3.11/site-packages/sphinx/ext/extlinks.py", line 101, in role
title = caption % part
~~~~~~~~^~~~~~
TypeError: not all arguments converted during string formatting
```
The build was successful earlier with `sphinx-doc 5.3.0`
## Steps to reproduce
Building ghc against `sphinx-doc 6.0.0`
## Expected behavior
Passed the build
## Environment
* GHC version used: 9.4.4
Optional:
* Operating System: osx
* System Architecture: intel/arm
issue