Add Dylan as code owner

[devbugging]

Dylan has made a couple of PRs already and is familiar with the codebase. Since we have no other reviewers in the DX Core team this needs to be accelerated.

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For contributor use:

• Targeted PR against master branch
• Linked to Github issue with discussion and accepted design OR link to spec that describes this work
• Code follows the standards mentioned here
• Updated relevant documentation
• Re-reviewed Files changed in the Github PR explorer
• Added appropriate labels

[janezpodhostnik]

Nice