fix(deps): update all non-major dependencies

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
once_cell	dependencies	patch	1.20.0 -> 1.20.2
tract-onnx	dependencies	patch	0.21.6 -> 0.21.7

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Release Notes

matklad/once_cell (once_cell)

v1.20.2

Compare Source

• Remove portable_atomic from Cargo.lock if it is not, in fact, used: #​267
  This is a work-around for this cargo bhttps://github.com/rust-lang/cargo/issues/108010801.

snipsco/tract (tract-onnx)

v0.21.7

Compare Source

• [metal] (experimental) introduce partial support for Apple Metal
• [core] Potential internal API breaking changes (operator names, comparison ops refactored)
• [data] (experimental) Smarter TDim simplification, handling of Min and Max. TDim assertions for simplifications.
• [data] (experimental) WIP around multiple scenarios (modes) for LLM inference
• Extra examples
• [linalg] (experimental) kernels targetting LLM block-quantized tasks (inc. intel 32x1 q40f32)

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