GitLab

* [Refactor] Update example_mla_decode.py and add tests for block_sparse_attn_tilelang

* Refactor example_mla_decode.py to define a main function for better structure and clarity.
* Introduce test_example_mla_decode.py to validate the functionality of example_mla_decode.
* Refactor block_sparse_attn_tilelang.py to define a main function and add test_block_sparse_attn_tilelang.py for testing.
* Ensure all new test files are integrated with tilelang testing framework.

* [Test] Enhance test_example_mla_decode with argument mocking

* Update test_example_mla_decode.py to mock sys.argv for better test isolation.
* Ensure the main function of example_mla_decode is called with the correct arguments during testing.