Python bindings: (#2112)

- Switch from versioningit to setuptools-scm
- Disable building of tests via DUNICORN_BUILD_TESTS var

bindings/python/pyproject.toml

@@ -1,5 +1,5 @@
 [build-system]
-requires = ["setuptools", "build", "wheel", "versioningit"]
+requires = ["setuptools>=64", "build", "wheel", "setuptools-scm>=8"]
 build-backend = "setuptools.build_meta"
 
 [project]
@@ -40,4 +40,5 @@ test = [
 [tool.setuptools.packages.find]
 include = ["unicorn*"]
 
-[tool.versioningit]
+[tool.setuptools_scm]
+root = '../../'