chore(deps): Update cbindgen requirement from 0.25 to 0.26

[dependabot]

Updates the requirements on cbindgen to permit the latest version.

Release notes

Sourced from cbindgen's releases.

0.26.0

• Fix swapping of >>= and <<= in constants.
• Add support for #[deprecated] (#860).
• Built-in support for bitflags 2.0.
• Support for "C-unwind" ABI.
• Generate bindings for non-public extern items if they are #[no_mangle].

Changelog

Sourced from cbindgen's changelog.

0.26.0

  * Fix swapping of `>>=` and `<<=` in constants.
  * Add support for #[deprecated] ([#860](https://github.com/mozilla/cbindgen/issues/860)).
  * Built-in support for bitflags 2.0.
  * Support for "C-unwind" ABI.
  * Generate bindings for non-public extern items if they are #[no_mangle].

0.25.0

  * Re-release of yanked 0.24.6 as a major release
  * Update MSRV to 1.57
  * Support variadic arguments (`...`) ([#805](https://github.com/mozilla/cbindgen/issues/805))
  * Add --depfile option ([#820](https://github.com/mozilla/cbindgen/issues/820))
  * Breaking changes: The `Config` struct now has a private member.

0.24.6 (YANKED: depfile option was breaking, see #841)

  * Update MSRV to 1.57
  * Support variadic arguments (`...`) ([#805](https://github.com/mozilla/cbindgen/issues/805))
  * Add --depfile option ([#820](https://github.com/mozilla/cbindgen/issues/820))

0.24.5

  * Don't enforce tempfile version.

0.24.4

  * Move expand infinite recursion fix ([#799](https://github.com/mozilla/cbindgen/issues/799))
  * Add with_cpp_compat to the builder ([#796](https://github.com/mozilla/cbindgen/issues/796))
  * Handle never type in return position consistently ([#780](https://github.com/mozilla/cbindgen/issues/780))
  * Fix warnings ([#816](https://github.com/mozilla/cbindgen/issues/816), [#819](https://github.com/mozilla/cbindgen/issues/819))
  * Updated documentation ([#788](https://github.com/mozilla/cbindgen/issues/788), [#791](https://github.com/mozilla/cbindgen/issues/791), [#792](https://github.com/mozilla/cbindgen/issues/792), [#810](https://github.com/mozilla/cbindgen/issues/810), [#823](https://github.com/mozilla/cbindgen/issues/823))

0.24.3

  * Make struct expressions correctly generated through typedefs ([#768](https://github.com/mozilla/cbindgen/issues/768)).

0.24.2

  * Make bitfield operators use explicit constructors.

0.24.1

  * Add support for unary negation ([#765](https://github.com/mozilla/cbindgen/issues/765)).
  * Make more bitfield operators constexpr ([#765](https://github.com/mozilla/cbindgen/issues/765)).

0.24.0

  * Basic const generic support ([#759](https://github.com/mozilla/cbindgen/issues/759), [#760](https://github.com/mozilla/cbindgen/issues/760) [#762](https://github.com/mozilla/cbindgen/issues/762)).

... (truncated)

Commits

• 703b53c v0.26.0
• 56f0feb Update MSRV in Readme
• 9b4a149 Add support for out-of-line bitfields declarations
• 35f2e44 Update URLs
• 85eb0f4 Bump clippy msrv to 1.64
• 43af1eb Handle bitflags bits method calls
• f72e447 CHANGES: Note #[deprecated] support.
• 1473070 utilities: annotation: Clean-up deprecated parsing and getter.
• 0fb5d07 Add support for #[deprecated].
• d8355da Support "C-unwind" ABI
• Additional commits viewable in compare view

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