Docs build fail

[sebix]

Building docs currently fails with

Extension error (sphinx.ext.napoleon):
Handler <function _process_docstring at 0x7ff3b502fea0> for event 'autodoc-process-docstring' threw an exception (exception: pop from an empty deque)
make: Leaving directory '/home/runner/work/intelmq/intelmq/docs'
make: *** [Makefile:22: html] Error 2
Error: Process completed with exit code 2.

upstream issues:

• Adding multipledispatch to Sphinx's autodoc. sphinx-doc/sphinx#10613
• Sphinx 5.1.0 exception: pop from an empty deque sphinx-doc/sphinx#10701