chore(deps): update rust crate cbindgen to v0.29.2

[renovate-sh-app]

This PR contains the following updates:

Package	Type	Update	Change
cbindgen	build-dependencies	minor	0.28.0 → 0.29.0
cbindgen	build-dependencies	minor	0.28 → 0.29

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Release Notes

mozilla/cbindgen (cbindgen)

v0.29.2

Compare Source

• Request serde's std feature to avoid issues with newer toml versions.

v0.29.1

Compare Source

• cf13c2b enum: Track dependencies properly in enumerations.
  * 307d1e9 constant: Handle cfg in associated constants.
  * 0902d02 Remove "display" feature from the toml crate
  * 9068410 Fix incorrect detection of duplicated constants
  * 451e768 docs: Correct after_include type in example config (fix)
  * aff68c6 cargo update
  * 09666f6 Update toml to 0.9

v0.29.0

Compare Source

• Support no-export annotation for statics and functions.
  * Fixed conditional fields of constexpr literal structs
  * Add rename rule for generated associated constant
  * Upgrade heck to 0.5
  * Add support for an optional nullable attribute
  * docs.md: Fix deprecated_with_note and deprecated_variant_with_note being spelled as 'notes'
  * Fix generic with "void" default
  * Fixed error generation of structures using the keyword as inside arrays
  * Added test for unsafe(no_mangle) attribute
  * Fixed handling of trait methods containing the unsafe attribute
  * Rename -Zparse-only

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