[CI] Bump tvm-ffi with compatible Python wrappers

[tqchen]

Summary

• bump tvm-ffi and include the device definition where its DLDevice traits are instantiated
• keep only the required Tensor wrapper layout fix and register ir.Type before reflected Expr fields can materialize a fallback wrapper
• preserve BaseFunc.with_attr callers by moving only method-private results, never the canonical self wrapper

Rationale

The tvm-ffi lifetime update requires a replacement wrapper to fit the layout already registered for the same type index. runtime.Tensor replaces the core ffi.Tensor wrapper, so it must use empty slots. The ordinary TVM mixins are first-registered with their concrete descendants and may safely retain normal Python dictionaries; the additional mixin and explicit-dictionary slot changes are not required.

Object tying also means BaseFuncCopy(self) may return self. Passing that wrapper through _move() invalidates the caller. The first update now passes the alias as an lvalue, forcing native copy-on-write to create a private result. Only later dictionary updates move a result that is not self and has not escaped the method.

Validation

• built an exact CPython 3.12 wheel from tvm-ffi 21e30c3b1d and rebuilt TVM against it
• direct Type/function/detach regressions: 3 passed
• complete IR plus focused Relax coverage: 111 passed
• prior Relax failure set: 157 passed, 9 skipped
• runtime probe for relax.Function, relax.ExternFunc, and tirx.PrimFunc: original wrappers preserved; single- and multi-attribute results distinct and valid
• all touched-file pre-commit hooks passed

[gemini-code-assist]

Code Review

This pull request updates the tvm-ffi subproject commit and introduces several FFI-related fixes, including header inclusions, import reordering to ensure correct registration order, and copy-on-write safety improvements in BaseFunc.with_attr. It also adds slots to the Tensor class to maintain instance layout compatibility. The feedback suggests asserting that func.attrs is None directly in the test file to prevent a potential TypeError when checking for membership.

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