Increase setuptools-scm version

run_af2/pyproject.toml

@@ -21,6 +21,6 @@ write_to = "src/run_af2/version.py"
 requires = [
     "setuptools>=56",
     "wheel",
-    "setuptools_scm>=6.0"
+    "setuptools_scm==6.4.2"
 ]
 build-backend = "setuptools.build_meta"