Update CODEOWNERS (#1424)

CODEOWNERS

diff --git a/CODEOWNERS b/CODEOWNERS
index 0b128b0..b9cbf9c 100644
--- a/CODEOWNERS
+++ b/CODEOWNERS
@@ -1,2 +1,3 @@
-# Admins
-* @vladmos @pmbethe09 @oreflow
+# Codeowners added as reviewers at PR creation time
+# https://docs.github.com/en/repositories/managing-your-repositorys-settings-and-features/customizing-your-repository/about-code-owners#codeowners-syntax
+* @bazelbuild/buildtools-team