Add -oss_excluded to TF build/test tag filters

Currently, `no_oss` is used to exclude a test from running in the official TF OSS test infrastructure. However, it is difficult to distinguish between temporary and permanent exclusions. For example, a test may be disabled temporarily if it is broken, or it may be designed to not run on OSS permanently. To address this issue, we introduce a new tag `oss_excluded` for platform exclusion design. `no_oss` will now be considered to disable broken tests, while `oss_excluded` will be used to permanently exclude a test from running on OSS.

PiperOrigin-RevId: 514847796

Author: kanglant

tensorflow_gnn/docs/guide/developer.md

@@ -90,8 +90,9 @@ bazel test --build_tag_filters=-no_oss --test_tag_filters=-no_oss --test_output=
 The `--define=no_tfgnn_py_deps=true` flag directs bazel to assume that all
 dependencies are provided in the environment (where we just installed the .whl)
 
-The flags `--build_tag_filters=-no_oss` and `--test_tag_filters=-no_oss` disable
-tests that pass in the internal production environment but fail on GitHub.
+The flags `--build_tag_filters=-no_oss` and
+`--test_tag_filters=-no_oss` disable tests that pass in the
+internal production environment but fail on GitHub.
 
 ### Run a single test file