doc: fix typo in onboarding.md

Signed-off-by: 서울민트초코 <minseong130502@gmail.com>
PR-URL: #65295
Reviewed-By: Aviv Keller <me@aviv.sh>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

Author: minirang

onboarding.md

@@ -283,8 +283,8 @@ needs to be pointed out separately during the onboarding.
   including accommodations, transportation, and visa fees (even in case the visa
   is denied) if needed. Check out the [summit](https://github.com/nodejs/summit)
   repository for details.
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+  access to the project's coverity project as outlined in [static-analysis][].
 * If you are interested in helping out with CI reliability, check out the
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