[codex] Allow legacy free reviewer lite models (#616) #6485

Job	Run time
build-and-check	3m 2s
test-integration-packages/billing	1m 35s
test-integration-packages/internal	1m 40s
test-integration-packages/agent-runtime	39s
test-integration-web	50s
test-integration-cli	44s
test-integration-common	56s
test-integration-sdk	1m 22s
test-common	46s
test-web	1m 13s
test-packages/internal	56s
test-packages/billing	52s
test-.agents	54s
test-sdk	49s
test-cli	52s
test-packages/agent-runtime	44s
	17m 54s

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