Update bindgen requirement from 0.65 to 0.66

[dependabot]

Updates the requirements on bindgen to permit the latest version.

Changelog

Sourced from bindgen's changelog.

0.66.1

Removed

• Revert source order sorting (#2543) due to correctness regressions #2558.

0.66.0

Added

• Added the --generate-cstr CLI flag to generate string constants as &CStr instead of &[u8]. (Requires Rust 1.59 or higher.)
• Added the --generate-shell-completions CLI flag to generate completions for different shells.
• The --wrap-static-fns option can now wrap va_list functions as variadic functions with the experimental ParseCallbacks::wrap_as_variadic_fn method.
• Add target mappings for riscv32imc and riscv32imac.
• Add the ParseCallbacks::field_visibility method to modify field visibility.

Changed

• Non-UTF-8 string constants are now generated as references (&[u8; SIZE]) instead of arrays ([u8; SIZE]) to match UTF-8 strings.
• Wrappers for static functions that return void no longer contain a return statement and only call the static function instead.
• The --wrap-static-fns option no longer emits wrappers for static variadic functions.
• Depfiles generated with --depfile or Builder::depfile will now properly generate module names and paths that include spaces by escaping them. To make the escaping clear and consistent, backslashes are also escaped.
• Updated bitflags dependency to 2.2.1. This changes the API of CodegenConfig.
• Prettyplease formatting is gated by an optional, enabled by default Cargo feature when depending on bindgen as a library.
• Items are now parsed in the order they appear in source files. This may result in auto-generated _bindgen_* names having a different index.
• Use default visibility for padding fields: Previously, padding fields were always public. Now, they follow the default visibility for the type they are in.
• Compute visibility of bitfield unit based on actual field visibility: A bitfield unit field and its related functions now have their visibility determined based on the most private between the default visibility and the actual visibility of the bitfields within the unit.

Removed

• Remove redundant Cargo features, which were all implicit:
  • bindgen-cli: env_logger and log removed in favor of logging
  • bindgen (lib):
    • log removed in favor of logging
    • which removed in favor of which-logging
    • annotate-snippets removed in favor of experimental

... (truncated)

Commits

• 38a779c Bump versions
• 167c0d6 Update CHANGELOG.md
• 7ac500c Fix expectation tests for clang 5
• c14e53e clang: Disable source order sorting for now. (#2558)
• adba49e clang: Clean up source order sorting. (#2557)
• 264075a 0.66.0 release preparation (#2555)
• 2665f1c Improve the blocklist_* and allowlist_* documentation. (#2554)
• bbeddb6 Use syn::Type instead of raw TokenStream. (#2549)
• 38a2c93 some doc fixes (#2552)
• 9042f42 rustfmt cleanup (#2553)
• Additional commits viewable in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot merge will merge this PR after your CI passes on it
• @dependabot squash and merge will squash and merge this PR after your CI passes on it
• @dependabot cancel merge will cancel a previously requested merge and block automerging
• @dependabot reopen will reopen this PR if it is closed
• @dependabot close will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
• @dependabot show <dependency name> ignore conditions will show all of the ignore conditions of the specified dependency
• @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)