refactor: polish session in HTTP handler

[youngsofun]

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Summary

1. ignore X-DATABEND-SESSION if not enabled in caps
2. http client in sql logic test use cookie instead of X-DATABEND-SESSION
3. not check session id in state_handler

Tests

• Unit Test
• Logic Test
• Benchmark Test
• No Test - Explain why

Type of change

• Bug Fix (non-breaking change which fixes an issue)
• New Feature (non-breaking change which adds functionality)
• Breaking Change (fix or feature that could cause existing functionality not to work as expected)
• Documentation Update
• Refactoring
• Performance Improvement
• Other (please describe):

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This change is