Configure git-repo-code-review-agent with use_default_subagents: true in
agents/agent_configs.txtpb so groupagent-grev-review uses the generic
gerrit_reviewer multi-perspective review framework.
Bug: 555706086
Change-Id: I079681b00e71cb886dc2343692d88b01d58a51ea
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/641904
Reviewed-by: Brian Gan <brgan@google.com>
Tested-by: Becky Siegel <beckysiegel@google.com>