Make ruff dependency less strict

This makes it less likely that projects which have this as a dependency will find themselves stuck

Author: CowKeyMan

betterproto2_compiler/pyproject.toml

@@ -18,7 +18,7 @@ dependencies = [
     # TODO use the version from the current repo?
     "betterproto2>=0.9.0,<0.10",
     # "betterproto2",
-    "ruff>=0.9.3,<0.15.0",
+    "ruff>=0.9.3",
     "jinja2>=3.0.3",
     "typing-extensions>=4.7.1,<5",
     "strenum>=0.4.15,<0.5 ; python_version == '3.10'",