Fix version detection in Sphinx config

doc/source/conf.py

@@ -12,7 +12,6 @@
 import os
 import sys
 from datetime import datetime
-from distutils.version import LooseVersion
 
 import jsonschema2md
 
@@ -36,16 +35,10 @@
 author = "Olof Kindgren"
 
 # The full version, including alpha/beta/rc tags.
-try:
-    from fusesoc.version import version as __version__
-except ImportError:
-    __version__ = "unknown"
+release: str = get_version("fusesoc")
 
-release = __version__
 # The short X.Y version.
-# v_major, v_minor = LooseVersion(release).version[:2]
-# version = f"{v_major}.{v_minor}"
-version = "2.4"
+version: str = ".".join(release.split(".")[:2])
 
 # -- General configuration ---------------------------------------------------