chore: release v0.2.170

[github-actions]

🤖 New release

• libc: 0.2.169 -> 0.2.170 (✓ API compatible changes)

Changelog

0.2.170 - 2024-12-23

Other

• Define c_char at top-level and remove per-target c_char definitions
• Allow unpredictable_function_pointer_comparisons in another place

Removed

• Remove c_char from the PSP module

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