chore: update dataproc CODEOWNERS (#2865)

diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS
index 4ab9c46..56aff5b 100644
--- a/.github/CODEOWNERS
+++ b/.github/CODEOWNERS
@@ -1,5 +1,5 @@
 # Default owner for all directories not owned by others
-*                   @codyoss @tbpg
+*                   @googleapis/yoshi-go-admins
 
 /bigtable/          @tritone
 /bigquery/          @googleapis/api-bigquery