chore: update codeowners

[ShadowCurse]

Update codeowners.

Summary of the PR

Remove JonathanWoollett-Light. Add ShadowCurse.

Requirements

Before submitting your PR, please make sure you addressed the following requirements:

• [ ] All commits in this PR have Signed-Off-By trailers (with git commit -s), and the commit message has max 60 characters for the summary and max 75 characters for each description line.
• [ ] All added/changed functionality has a corresponding unit/integration test.
• [ ] All added/changed public-facing functionality has entries in the "Upcoming Release" section of CHANGELOG.md (if no such section exists, please create one).
• [ ] Any newly added unsafe code is properly documented.

[roypat]

Updated repository settings accordingly