Fix DownloadFunctionsTests.test_download_all_timeout

This fixes the OTHER problem: the test files to download were too small
and could be plausibly retrieved within 1 second, so tests inside the
SSEC could fail to trigger the timeout.

csppfetch/test.py

@@ -404,8 +404,7 @@ class DownloadFunctionsTests(DTestCase):
     def test_download_all_timeout(self):
         with TemporaryDirectory() as dir:
             stats = csppfetch.DownloadStatistics()
-            url_to_dst = { f"http://geodb.ssec.wisc.edu/ancillary/2019_05_27_147/gfs.19052700_F{f:03d}.hdf" : dir+f"/f{f}" for f in range(3,22,3) }
-
+            url_to_dst = { "ftp://ftp.ssec.wisc.edu/pub/permanent/software/crtm/crtm_v2.3.0.tar.gz": 'tempfile'}
             with self.assertRaises(csppfetch.timelimit.OutOfTime):
                 csppfetch.download_all(url_to_dst, stats, True, 1)
             for file in url_to_dst.values():