refactor(query): only intercept dml and queries in queries queue

[zhang2014]

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Summary

limit the concurrency of Databend-query is only effective for queries(select, update, delete, insert, replace, merge into). when sql is query and queue is full, it will be queued to wait.

SELECT the system database will not be affected, which means that when queue is full, we can also get queued queries through 'select * from system. queries_queue'

• Fixes #[Link the issue here]

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):

[youngsofun]

why we still need entry for plans that not need to acquire？

[zhang2014]

why we still need entry for plans that not need to acquire？

queue is abstract and may also have queue management for other operations.