fix(core): fix incompatibilities caused by the latest cargo fix

[nabetti1720]

Description of changes

After applying the latest rust toolchain, we found new incompatibilities and have fixed them.

% rustup update
info: syncing channel updates for 'stable-aarch64-apple-darwin'
info: syncing channel updates for 'nightly-aarch64-apple-darwin'
info: checking for self-update

   stable-aarch64-apple-darwin unchanged - rustc 1.85.0 (4d91de4e4 2025-02-17)
  nightly-aarch64-apple-darwin unchanged - rustc 1.87.0-nightly (f04bbc60f 2025-02-20)

Checklist

• Created unit tests in tests/unit and/or in Rust for my feature if needed
• Ran make fix to format JS and apply Clippy auto fixes
• Made sure my code didn't add any additional warnings: make check
• Added relevant type info in types/ directory
• Updated documentation if needed (API.md/README.md/Other)

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.

[richarddavison]

Thanks! LGTM!