Bump the cargo group across 1 directory with 2 updates

Bumps the cargo group with 2 updates in the /aries-backchannels/aries-vcx directory: [openssl](https://github.com/sfackler/rust-openssl) and [whoami](https://github.com/ardaku/whoami).


Updates `openssl` from 0.10.48 to 0.10.64
- [Release notes](https://github.com/sfackler/rust-openssl/releases)
- [Commits](sfackler/rust-openssl@openssl-v0.10.48...openssl-v0.10.64)

Updates `whoami` from 1.3.0 to 1.5.1
- [Changelog](https://github.com/ardaku/whoami/blob/v1/CHANGELOG.md)
- [Commits](ardaku/whoami@v1.3.0...v1.5.1)

---
updated-dependencies:
- dependency-name: openssl
  dependency-type: indirect
  dependency-group: cargo
- dependency-name: whoami
  dependency-type: indirect
  dependency-group: cargo
...

Signed-off-by: dependabot[bot] <support@github.com>