Update dependencies

Author: rocky

pymathics/hello/version.py

@@ -5,4 +5,4 @@
 # well as importing into Python. That's why there is no
 # space around "=" below.
 # fmt: off
-__version__="7.0.1dev0"  # noqa
+__version__="9.0.0"  # noqa

pyproject.toml

@@ -13,7 +13,8 @@ build-backend = "setuptools.build_meta"
 name = "Mathics3-hello"
 description = 'Mathics3 Hello, World! module'
 dependencies = [
-        "Mathics3-Module-Base",
+        "Mathics3-Module-Base >= 9.0.0",
+        "Mathics3 >= 9.0.0",
 ]
 requires-python = ">=3.10"
 readme = "README.rst"