Add @workspace-devrel as a code owner

Force add devrel team to CODEOWNERS since previous owner no longer has org access.

Author: sqrrrl

.github/CODEOWNERS

@@ -15,4 +15,5 @@
 # https://help.github.com/en/github/creating-cloning-and-archiving-repositories/about-code-owners
 
 * @jpoehnelt
+* @workspace-devrel
 pnpm-lock.yaml @googleworkspace-bot @jpoehnelt