Add default-tag for shallow clone (#343)

Author: schroedtert

pyproject.toml

@@ -35,6 +35,10 @@ homepage = "https://pedpy.readthedocs.io/"
 requires = ["setuptools>=42", "wheel", "versioningit"]
 build-backend = "setuptools.build_meta"
 
+[tool.versioningit.vcs]
+method = "git"
+default-tag = "0.0.0"
+
 [tool.versioningit.format]
 distance = "{next_version}.dev{distance}"
 dirty = "{next_version}.dev{distance}"