chore: add @wbreza to CODEOWNERS

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: Copilot

.github/CODEOWNERS

@@ -1,4 +1,4 @@
 # Default owners for everything in the repo
 # @spboyer is the primary owner, @chlowell and @richardpark-msft are additional reviewers
 # All three will be auto-assigned as reviewers on any new or opened PR
-* @spboyer @chlowell @richardpark-msft
+* @spboyer @chlowell @richardpark-msft @wbreza