refactor(executor): control queries executor via configuration

[dqhl76]

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Summary

• chore: Remove compile flag enable_queries_executor
• chore: Add a configuration [query.enable_queries_executor] to allow enable this feature
• chore: Add a settings set disable_queries_executor=1 to allow user disable this feature and fallback to query executor on runtime
• fix: queries executor hang due to thread blocking

Tests

• Unit Test
• Logic Test
• Benchmark Test
• No Test - No logic change

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 

[github-actions]

Docker Image for PR

• tag: pr-18283-95d9985-1751508291

note: this image tag is only available for internal use.

[dqhl76]

Behaviour:

Enable in configuration:
Allow use set to disable it by

set use_legacy_query_executor = 1;

Allow revert by unset:

unset use_legacy_query_executor;

Allow use set to disable it by

set use_legacy_query_executor = 0;
error: APIError: QueryFailed: [2004]This setting is not allowed set to 0, please use unset

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Not enable in configuration(default):

set use_legacy_query_executor = 1;
error: APIError: QueryFailed: [2004]This setting is not allowed when queries executor is not enabled in the config