build(deps): bump cxx from 1.0.49 to 1.0.63

[dependabot]

Bumps cxx from 1.0.49 to 1.0.63.

Release notes

Sourced from cxx's releases.

1.0.63

• Add support for conditional compilation using #[cfg(...)] attributes inside the bridge module (#989)

    #[cfg(target_os = "android")]
    type CallInvokerHolder;
#[cfg(target_os = "android")]
fn getCallInvoker(self: Pin<&mut CallInvokerHolder>) -> SharedPtr<CallInvoker>;

1.0.62

• Update command line parser to clap 3 (#993)

1.0.61

• Add String::lossy constructors to C++ API, corresponding to from_utf8_lossy and from_utf16_lossy (#984, thanks @​benesch)
• Add Vec<T>::truncate to C++ API (#988, thanks @​benesch)
• Assert sufficient alignment of const char16_t* passed to a rust::String constructor (#992)

1.0.60

• Optimize the Debug and Display impl of CxxString to eliminate memory allocation (#979)
• Prevent handwritten panicking Drop, PartialEq, PartialOrd, or Hash trait impls from causing UB when called from C++ (#980)
• Add support for codebases that choose to opt in to elided_lifetimes_in_paths lint (#907, #981)

1.0.59

• Add clear() member function to rust::Vec<T> in C++ (#951, thanks @​rookboom)

1.0.58

• no_std mode (#969, #970, #971, #972, #973, #974, #975)

  [dependencies]
  cxx = { version = "1.0", default-features = false, features = ["alloc"] }

  A no_alloc mode is also implemented but is not stable yet in this release.

  [dependencies]
  cxx = { version = "1.0", default-features = false }

1.0.57

• Apply --cxx-impl-annotations also to the functions underlying UniquePtr and similar builtin bindings (#967, thanks @​adetaylor)

1.0.56

• Pass through doc(hidden) attributes inside the bridge module (#945)

1.0.55

• Fix build script race causing "Failed to create symlink ... File exists (os error 17)" in cxx_build (#938)

... (truncated)

Commits

• 34d4447 Release 1.0.63
• 2d53d81 Lockfile update
• 7280493 Merge pull request #1003 from dtolnay/cfg
• 124e10e Support all/any cfg evaluation with not all clauses determinate
• 15b12b5 Merge pull request #1002 from dtolnay/cfg
• 8cade5c Disallow cfg(test) inside Cargo builds
• d92004f Merge pull request #1001 from dtolnay/cfg
• 6deee4c Add --cfg to cli help test
• c40118f Add a cfg evaluator for the non-Cargo builds
• c1f2176 Handle module-level cfg attributes
• Additional commits viewable in compare view

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