Deprecated use of TiffWriter.save in tests

[jakirkham]

Describe the issue:

The TiffWriter.save method has been removed in tifffile version 2025.2.18 and newer

https://github.com/cgohlke/tifffile/blob/78b57cf84bd92528ba8877ea4972769bb4d43600/tifffile/tifffile.py#L132

Minimal Complete Verifiable Example:

However we are still using it in the following test

dask-image/tests/test_dask_image/test_imread/test_cupy_imread.py

Lines 10 to 17 in bbfad41

	@pytest.mark.cupy
	def test_cupy_imread(tmp_path):
	a = np.random.uniform(low=0.0, high=1.0, size=(1, 4, 3)).astype(np.float32)
	fn = str(tmp_path/"test.tiff")
	with tifffile.TiffWriter(fn) as fh:
	for i in range(len(a)):
	fh.save(a[i])

[jakirkham]

Think this can be resolved by pulling over @m-albert 's changes from PR: #393

Namely replacing save with write

      with tifffile.TiffWriter(fn) as fh:
          for i in range(len(a)):
-             fh.save(a[i])
+             fh.write(a[i])

[jakirkham]

Submitted a fix in PR: #398