Disable TFL tests broken by tfhub/kaggle. (iree-org#17794)

Sample logs:
https://github.com/iree-org/iree/actions/runs/9760105520/job/26938839345
(`urllib.error.HTTPError: HTTP Error 500: Internal Server Error`)

URLs like
https://tfhub.dev/sayakpaul/lite-model/east-text-detector/dr/1?lite-format=tflite
no longer work with direct downloading. "TensorFlow Hub has been
integrated with Kaggle Models.", so those URLs are getting redirected to
e.g.
https://www.kaggle.com/models/spsayakpaul/east-text-detector/tfLite/dr/1?lite-format=tflite&tfhub-redirect=true,
which hides the files behind some new download API. Until we can migrate
to the new API (or use the cURL endpoint and extract from the .tar.gz
archive), disable affected tests.

integrations/tensorflow/test/iree_tfl_tests/cartoon_gan.run

@@ -1 +1,3 @@
+# REQUIRES: bugfix
+#           tfhub/kaggle broke their download endpoint, update URLs
 # RUN: %PYTHON -m iree_tfl_tests.cartoon_gan_test --artifacts_dir=%t

integrations/tensorflow/test/iree_tfl_tests/mnasnet.run

@@ -1 +1,3 @@
+# REQUIRES: bugfix
+#           tfhub/kaggle broke their download endpoint, update URLs
 # RUN: %PYTHON -m iree_tfl_tests.mnasnet_test --artifacts_dir=%t

integrations/tensorflow/test/iree_tfl_tests/mobilenet_v3.run

@@ -1 +1,3 @@
+# REQUIRES: bugfix
+#           tfhub/kaggle broke their download endpoint, update URLs
 # RUN: %PYTHON -m iree_tfl_tests.mobilenet_v3_test --artifacts_dir=%t