Add API KEY for FinanceAgent

[yongfengdu]

Description

Test of FinanceAgent require these keys: #1063

Issues

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Type of change

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• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds new functionality)
• Breaking change (fix or feature that would break existing design and interface)

Dependencies

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Tests

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[yongfengdu]

Impact of without these API KEYs:
Test result is still PASS because the agent system is running correctly, but the test to research-agent will not have correct answer due to not able to get data correctly from tools:
{"id":"b356d09007cf3d6599cc6f1bd411ef45","text":"Recursion limit of 25 reached without hitting a stop condition. You can increase the limit by setting the recursion_limit config key.\nFor troubleshooting, visit: https://python.langchain.com/docs/troubleshooting/errors/GRAPH_RECURSION_LIMIT","prompt":"Generate NVDA financial research report"}