Add setuptools to tests extras

Add setuptools>=82.0.0 to the 'tests' extra in pyproject.toml and update the lockfile accordingly. This is necessary, since the "fs" package requires `pk_resources` which ships with setuptools

Author: JR-1991

pyproject.toml

@@ -34,6 +34,7 @@ tests = [
     "wheel>=0.43.0,<0.44.0",
     "pre-commit==3.5.0",
     "ruff>=0.4.4,<0.5.0",
+    "setuptools>=82.0.0",
 ]
 mcp = [
     "fastmcp>=2.14.5",