Add jarin@ to inspector and debug OWNERS.

Bug: none
Change-Id: If62875a1f907ac33b6c6e6a894099a83bba71783
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3225935Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77423}

src/debug/OWNERS

 bmeurer@chromium.org
+jarin@chromium.org
 jgruber@chromium.org
 kimanh@chromium.org
 leese@chromium.org

src/inspector/OWNERS

 bmeurer@chromium.org
 caseq@chromium.org
+jarin@chromium.org
 kimanh@chromium.org
 leese@chromium.org
 pfaffe@chromium.org