[TEST] Introduce release extra tests

[tqchen]

This PR introduces release extra tests to help run some integration of downstream packages, making it easy to run quick checks during release.

[gemini-code-assist]

Summary of Changes

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This pull request establishes a dedicated suite of "extra" integration tests (tests/release-extra) intended for use during release processes. The goal is to facilitate rapid compatibility checks with downstream packages, ensuring a smoother release by catching potential integration issues early. These tests are distinct from continuous integration and focus on representative use cases.

Highlights

• New Release Test Suite: A new directory tests/release-extra has been introduced to house additional integration tests specifically designed for release verification.
• Integration Test Purpose: These tests aim to provide quick checks for integration compatibility with downstream packages during release cycles, complementing existing unit and downstream tests.
• cute DSL Compilation Test: A new test file test_cute_dsl_compile.py has been added, demonstrating the compilation and execution of cutlass.cute DSL kernels with torch tensors, including validation for tensor divisibility.

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[gemini-code-assist]

Code Review

This PR introduces a new set of extra tests for release validation, including a README and an initial test for cute DSL compilation. The new test is a good addition, but it can be improved by adding result verification and marking its dependency on CUDA to ensure it's skipped when CUDA is not available. I've provided a suggestion to update the test function accordingly.

[junrushao]

I do think it's a good idea to test out those unittests per commit on mainline. Just need some test machines