Build(deps): Bump JetBrains.Annotations in /src/Spice86 (#777)

Bumps JetBrains.Annotations from 2023.3.0 to 2024.2.0.

---
updated-dependencies:
- dependency-name: JetBrains.Annotations
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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