sec: relax fastapi upper bound + floor-pin tornado (CVE-2025-62727, CVE-2026-31958) #979

Job	Run time
find-tutorials	4s
test-00_sync/000_hello_acp	2m 11s
test-10_async/00_base/040_other_sdks	14m 48s
test-10_async/00_base/080_batch_events	2m 51s
test-10_async/00_base/020_streaming	2m 57s
test-00_sync/020_streaming	3m 12s
test-10_async/10_temporal/060_open_ai_agents_sdk_hello_world	2m 28s
test-10_async/00_base/000_hello_acp	1m 50s
test-10_async/10_temporal/000_hello_acp	2m 0s
test-10_async/00_base/030_tracing	2m 3s
test-00_sync/030_langgraph	3m 0s
test-10_async/00_base/010_multiturn	6m 4s
test-00_sync/010_multiturn	2m 38s
test-10_async/10_temporal/050_agent_chat_guardrails	1m 53s
test-10_async/10_temporal/020_state_machine	6m 54s
test-10_async/10_temporal/090_claude_agents_sdk_mvp	1m 54s
test-10_async/00_base/100_langgraph	2m 10s
test-10_async/10_temporal/080_open_ai_agents_sdk_human_in_the_loop	12m 39s
test-10_async/10_temporal/010_agent_chat	15m 17s
test-10_async/10_temporal/030_custom_activities	1m 56s
test-10_async/10_temporal/070_open_ai_agents_sdk_tools	7m 37s
Test Summary	7s
	1h 36m 33s

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