trying further to fix readthedocs.org builds

Author: martinpopel

docs/conf.py

@@ -51,7 +51,7 @@
 
 # General information about the project.
 project = 'Udapi'
-copyright = '2017, Martin Popel'
+copyright = '2023, Martin Popel'
 author = 'Martin Popel'
 
 # The version info for the project you're documenting, acts as replacement for
@@ -61,7 +61,7 @@
 # The short X.Y version.
 version = '0'
 # The full version, including alpha/beta/rc tags.
-release = '2'
+release = '3'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
@@ -167,7 +167,7 @@ def run_apidoc(_):
     module = os.path.abspath(os.path.join(cur_dir, "..", "udapi"))
     print(module)
 
-    from sphinx.apidoc import main
+    from sphinx.ext.apidoc import main
     main(['--separate', '-o', cur_dir, module, '--force'])
 
 def setup(app):