Reduce chat request retention #6645

Job	Run time
build-and-check	2m 53s
test-integration-packages/internal	1m 0s
test-integration-packages/billing	59s
test-integration-cli	45s
test-integration-web	48s
test-integration-packages/agent-runtime	50s
test-integration-common	50s
test-packages/billing	51s
test-integration-sdk	1m 15s
test-common	38s
test-packages/agent-runtime	52s
test-packages/internal	47s
test-cli	1m 1s
test-.agents	38s
test-sdk	46s
test-web	1m 5s
	15m 58s

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