RFR: Updated codeowners

[Stefan Karlsson]

On Tue, 20 Feb 2024 17:49:23 GMT, Jesper Wilhelmsson <jwilhelm at openjdk.org> wrote:

> The codeowners list was updated with the latest new and removed directories. Also added links to directories.

HotSpot changes look good.

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Marked as reviewed by stefank (no project role).

PR Review: https://git.openjdk.org/guide/pull/120#pullrequestreview-1898853421