CI: update include-in-latex after eval_config_file() API change

Author: mgeier

include-in-latex/conf.py

@@ -4,7 +4,7 @@
 import sphinx
 
 original_conf_py = Path(__file__).resolve().parent.parent / 'doc' / 'conf.py'
-locals().update(sphinx.config.eval_config_file(str(original_conf_py), tags))
+locals().update(sphinx.config.eval_config_file(original_conf_py, tags))
 
 templates_path = ['_templates']
 html_favicon = None