build(deps): bump allocator-api2 from 0.2.20 to 0.2.21 (#34453)

Bumps [allocator-api2](https://github.com/zakarumych/allocator-api2) from 0.2.20 to 0.2.21.
- [Changelog](https://github.com/zakarumych/allocator-api2/blob/main/CHANGELOG.md)
- [Commits](https://github.com/zakarumych/allocator-api2/commits/v0.2.21)

---
updated-dependencies:
- dependency-name: allocator-api2
  dependency-type: indirect
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Cargo.lock

@@ -125,9 +125,9 @@ dependencies = [
 
 [[package]]
 name = "allocator-api2"
-version = "0.2.20"
+version = "0.2.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "45862d1c77f2228b9e10bc609d5bc203d86ebc9b87ad8d5d5167a6c9abf739d9"
+checksum = "683d7910e743518b0e34f1186f92494becacb047c7b6bf616c96772180fef923"
 
 [[package]]
 name = "android-activity"