[Code scan] Exclude VASP k-point data generator from pytest collection

[njzjz]

Found by Codex global repository scan of deepmodeling/dpgen2 at commit 2679611a3704f5c2646c8cb353e34177518db758.

The helper under tests/fp/data.vasp.kp.gf is named make_kp_test.py, which matches pytest's default *_test.py collection pattern. It also runs generation code at import time:

dpgen2/tests/fp/data.vasp.kp.gf/make_kp_test.py

Lines 1 to 26 in 2679611

	#!/usr/bin/env python3
	import os
	import ase
	import dpdata
	import numpy as np
	def make_one(out_dir):
	# [0.5, 1)
	[aa, bb, cc] = np.random.random(3) * 0.5 + 0.5
	# [1, 179)
	[alpha, beta, gamma] = np.random.random(3) * (178 / 180) + 1
	# make cell
	cell = ase.geometry.cellpar_to_cell([aa, bb, cc, alpha, beta, gamma])
	sys = dpdata.System("POSCAR")
	sys["cells"][0] = cell
	os.makedirs(out_dir, exist_ok=True)
	sys.to_vasp_poscar(os.path.join(out_dir, "POSCAR"))
	ntest = 30
	for ii in range(ntest):
	out_dir = "test.%03d" % ii
	make_one(out_dir)

During a plain pytest -q collection in the scanned checkout, pytest imported this helper and executed the top-level loop before real tests ran. In this environment it failed with:

AttributeError: module 'ase' has no attribute 'geometry'

Even when the import succeeds, collecting a data-generation helper can mutate test data during discovery.

Suggested fix: rename the helper so pytest does not collect it, add if __name__ == "__main__" around the generation loop, or add explicit collection ignores for data helper scripts.