Bump bitwarden-core version to 2.0.0 (#605)

## Type of change
    - [ ] Bug fix
    - [ ] New feature development
- [ ] Tech debt (refactoring, code cleanup, dependency upgrades, etc)
    - [ ] Build/deploy pipeline (DevOps)
    - [X] Other

    ## Objective
    Automated bitwarden-core version bump to 2.0.0.

Co-authored-by: bitwarden-devops-bot <[email protected]>

Author: bw-ghapp[bot]